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Finding the Fourth Proportional to 658,133.30, 988,366.35 and 508,736.90

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Solution

The fourth proportional to 658,133.30, 988,366.35 and 508,736.90 is: 764,006.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,133.30 : 988,366.35 = 508,736.90 : x
  2. Step 2: Convert to fraction form
    658,133.30/988,366.35 = 508,736.90/x
  3. Step 3: Cross multiply
    658,133.30x = 988,366.35 × 508,736.90
  4. Step 4: Simplify right side
    658,133.30x = 502,818,432,963.32
  5. Step 5: Solve for x
    x = 502,818,432,963.32/658,133.30
  6. Step 6: Final answer
    x = 764,006.98

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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.