Home / 728,472.36-1,005,452.82-473,380.68

Finding the Fourth Proportional to 728,472.36, 1,005,452.82 and 473,380.68

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Solution

The fourth proportional to 728,472.36, 1,005,452.82 and 473,380.68 is: 653,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,472.36 : 1,005,452.82 = 473,380.68 : x
  2. Step 2: Convert to fraction form
    728,472.36/1,005,452.82 = 473,380.68/x
  3. Step 3: Cross multiply
    728,472.36x = 1,005,452.82 × 473,380.68
  4. Step 4: Simplify right side
    728,472.36x = 475,961,939,639.52
  5. Step 5: Solve for x
    x = 475,961,939,639.52/728,472.36
  6. Step 6: Final answer
    x = 653,369.94

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Double scale
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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.