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Finding the Fourth Proportional to 508,508.28, 702,002.70 and 358,275.96

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Solution

The fourth proportional to 508,508.28, 702,002.70 and 358,275.96 is: 494,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,508.28 : 702,002.70 = 358,275.96 : x
  2. Step 2: Convert to fraction form
    508,508.28/702,002.70 = 358,275.96/x
  3. Step 3: Cross multiply
    508,508.28x = 702,002.70 × 358,275.96
  4. Step 4: Simplify right side
    508,508.28x = 251,510,691,265.09
  5. Step 5: Solve for x
    x = 251,510,691,265.09/508,508.28
  6. Step 6: Final answer
    x = 494,604.91

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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.