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Finding the Fourth Proportional to 508,801.70, 762,304.43 and 308,715.77

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Solution

The fourth proportional to 508,801.70, 762,304.43 and 308,715.77 is: 462,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,801.70 : 762,304.43 = 308,715.77 : x
  2. Step 2: Convert to fraction form
    508,801.70/762,304.43 = 308,715.77/x
  3. Step 3: Cross multiply
    508,801.70x = 762,304.43 × 308,715.77
  4. Step 4: Simplify right side
    508,801.70x = 235,335,401,759.41
  5. Step 5: Solve for x
    x = 235,335,401,759.41/508,801.70
  6. Step 6: Final answer
    x = 462,528.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.