Home / 1,026,145.40-1,539,218.10-426,907.40

Finding the Fourth Proportional to 1,026,145.40, 1,539,218.10 and 426,907.40

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Solution

The fourth proportional to 1,026,145.40, 1,539,218.10 and 426,907.40 is: 640,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,145.40 : 1,539,218.10 = 426,907.40 : x
  2. Step 2: Convert to fraction form
    1,026,145.40/1,539,218.10 = 426,907.40/x
  3. Step 3: Cross multiply
    1,026,145.40x = 1,539,218.10 × 426,907.40
  4. Step 4: Simplify right side
    1,026,145.40x = 657,103,597,103.94
  5. Step 5: Solve for x
    x = 657,103,597,103.94/1,026,145.40
  6. Step 6: Final answer
    x = 640,361.10

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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.