Home / 726,456.20-1,002,515.70-404,203.40

Finding the Fourth Proportional to 726,456.20, 1,002,515.70 and 404,203.40

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Solution

The fourth proportional to 726,456.20, 1,002,515.70 and 404,203.40 is: 557,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,456.20 : 1,002,515.70 = 404,203.40 : x
  2. Step 2: Convert to fraction form
    726,456.20/1,002,515.70 = 404,203.40/x
  3. Step 3: Cross multiply
    726,456.20x = 1,002,515.70 × 404,203.40
  4. Step 4: Simplify right side
    726,456.20x = 405,220,254,493.38
  5. Step 5: Solve for x
    x = 405,220,254,493.38/726,456.20
  6. Step 6: Final answer
    x = 557,804.11

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.