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Finding the Fourth Proportional to 656,630.80, 984,978.60 and 341,702.80

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Solution

The fourth proportional to 656,630.80, 984,978.60 and 341,702.80 is: 512,571.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,630.80 : 984,978.60 = 341,702.80 : x
  2. Step 2: Convert to fraction form
    656,630.80/984,978.60 = 341,702.80/x
  3. Step 3: Cross multiply
    656,630.80x = 984,978.60 × 341,702.80
  4. Step 4: Simplify right side
    656,630.80x = 336,569,945,560.08
  5. Step 5: Solve for x
    x = 336,569,945,560.08/656,630.80
  6. Step 6: Final answer
    x = 512,571.06

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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.