Home / 1,026,147.90-1,539,221.85-426,909.90

Finding the Fourth Proportional to 1,026,147.90, 1,539,221.85 and 426,909.90

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Solution

The fourth proportional to 1,026,147.90, 1,539,221.85 and 426,909.90 is: 640,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,147.90 : 1,539,221.85 = 426,909.90 : x
  2. Step 2: Convert to fraction form
    1,026,147.90/1,539,221.85 = 426,909.90/x
  3. Step 3: Cross multiply
    1,026,147.90x = 1,539,221.85 × 426,909.90
  4. Step 4: Simplify right side
    1,026,147.90x = 657,109,046,061.32
  5. Step 5: Solve for x
    x = 657,109,046,061.32/1,026,147.90
  6. Step 6: Final answer
    x = 640,364.85

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.