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Finding the Fourth Proportional to 552,670.91, 762,631.42 and 310,948.15

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Solution

The fourth proportional to 552,670.91, 762,631.42 and 310,948.15 is: 429,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,670.91 : 762,631.42 = 310,948.15 : x
  2. Step 2: Convert to fraction form
    552,670.91/762,631.42 = 310,948.15/x
  3. Step 3: Cross multiply
    552,670.91x = 762,631.42 × 310,948.15
  4. Step 4: Simplify right side
    552,670.91x = 237,138,823,812.98
  5. Step 5: Solve for x
    x = 237,138,823,812.98/552,670.91
  6. Step 6: Final answer
    x = 429,077.81

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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.