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Finding the Fourth Proportional to 711,708.68, 982,061.08 and 425,167.92

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Solution

The fourth proportional to 711,708.68, 982,061.08 and 425,167.92 is: 586,673.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,708.68 : 982,061.08 = 425,167.92 : x
  2. Step 2: Convert to fraction form
    711,708.68/982,061.08 = 425,167.92/x
  3. Step 3: Cross multiply
    711,708.68x = 982,061.08 × 425,167.92
  4. Step 4: Simplify right side
    711,708.68x = 417,540,866,696.55
  5. Step 5: Solve for x
    x = 417,540,866,696.55/711,708.68
  6. Step 6: Final answer
    x = 586,673.84

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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.