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Finding the Fourth Proportional to 607,630.80, 911,008.80 and 341,472.90

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Solution

The fourth proportional to 607,630.80, 911,008.80 and 341,472.90 is: 511,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,630.80 : 911,008.80 = 341,472.90 : x
  2. Step 2: Convert to fraction form
    607,630.80/911,008.80 = 341,472.90/x
  3. Step 3: Cross multiply
    607,630.80x = 911,008.80 × 341,472.90
  4. Step 4: Simplify right side
    607,630.80x = 311,084,816,861.52
  5. Step 5: Solve for x
    x = 311,084,816,861.52/607,630.80
  6. Step 6: Final answer
    x = 511,963.54

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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.