Home / 1,026,005.40-1,539,008.10-386,307.90

Finding the Fourth Proportional to 1,026,005.40, 1,539,008.10 and 386,307.90

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Solution

The fourth proportional to 1,026,005.40, 1,539,008.10 and 386,307.90 is: 579,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,005.40 : 1,539,008.10 = 386,307.90 : x
  2. Step 2: Convert to fraction form
    1,026,005.40/1,539,008.10 = 386,307.90/x
  3. Step 3: Cross multiply
    1,026,005.40x = 1,539,008.10 × 386,307.90
  4. Step 4: Simplify right side
    1,026,005.40x = 594,530,987,193.99
  5. Step 5: Solve for x
    x = 594,530,987,193.99/1,026,005.40
  6. Step 6: Final answer
    x = 579,461.85

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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.