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Finding the Fourth Proportional to 581,618.50, 872,428.07 and 265,853.97

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Solution

The fourth proportional to 581,618.50, 872,428.07 and 265,853.97 is: 398,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,618.50 : 872,428.07 = 265,853.97 : x
  2. Step 2: Convert to fraction form
    581,618.50/872,428.07 = 265,853.97/x
  3. Step 3: Cross multiply
    581,618.50x = 872,428.07 × 265,853.97
  4. Step 4: Simplify right side
    581,618.50x = 231,938,465,948.94
  5. Step 5: Solve for x
    x = 231,938,465,948.94/581,618.50
  6. Step 6: Final answer
    x = 398,781.10

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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.