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Finding the Fourth Proportional to 552,658.17, 762,662.87 and 307,639.04

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Solution

The fourth proportional to 552,658.17, 762,662.87 and 307,639.04 is: 424,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,658.17 : 762,662.87 = 307,639.04 : x
  2. Step 2: Convert to fraction form
    552,658.17/762,662.87 = 307,639.04/x
  3. Step 3: Cross multiply
    552,658.17x = 762,662.87 × 307,639.04
  4. Step 4: Simplify right side
    552,658.17x = 234,624,873,170.45
  5. Step 5: Solve for x
    x = 234,624,873,170.45/552,658.17
  6. Step 6: Final answer
    x = 424,538.87

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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.