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Finding the Fourth Proportional to 539,727.78, 744,821.13 and 298,008.39

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Solution

The fourth proportional to 539,727.78, 744,821.13 and 298,008.39 is: 411,249.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,727.78 : 744,821.13 = 298,008.39 : x
  2. Step 2: Convert to fraction form
    539,727.78/744,821.13 = 298,008.39/x
  3. Step 3: Cross multiply
    539,727.78x = 744,821.13 × 298,008.39
  4. Step 4: Simplify right side
    539,727.78x = 221,962,945,789.28
  5. Step 5: Solve for x
    x = 221,962,945,789.28/539,727.78
  6. Step 6: Final answer
    x = 411,249.81

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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.