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Finding the Fourth Proportional to 675,781.92, 932,486.81 and 403,792.38

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Solution

The fourth proportional to 675,781.92, 932,486.81 and 403,792.38 is: 557,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,781.92 : 932,486.81 = 403,792.38 : x
  2. Step 2: Convert to fraction form
    675,781.92/932,486.81 = 403,792.38/x
  3. Step 3: Cross multiply
    675,781.92x = 932,486.81 × 403,792.38
  4. Step 4: Simplify right side
    675,781.92x = 376,531,066,309.55
  5. Step 5: Solve for x
    x = 376,531,066,309.55/675,781.92
  6. Step 6: Final answer
    x = 557,178.37

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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.