Home / 498,475.29-687,898.70-283,615.35

Finding the Fourth Proportional to 498,475.29, 687,898.70 and 283,615.35

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Solution

The fourth proportional to 498,475.29, 687,898.70 and 283,615.35 is: 391,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,475.29 : 687,898.70 = 283,615.35 : x
  2. Step 2: Convert to fraction form
    498,475.29/687,898.70 = 283,615.35/x
  3. Step 3: Cross multiply
    498,475.29x = 687,898.70 × 283,615.35
  4. Step 4: Simplify right side
    498,475.29x = 195,098,629,146.97
  5. Step 5: Solve for x
    x = 195,098,629,146.97/498,475.29
  6. Step 6: Final answer
    x = 391,390.77

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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.