Home / 437,711.80-656,826.90-319,084.60

Finding the Fourth Proportional to 437,711.80, 656,826.90 and 319,084.60

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Solution

The fourth proportional to 437,711.80, 656,826.90 and 319,084.60 is: 478,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,711.80 : 656,826.90 = 319,084.60 : x
  2. Step 2: Convert to fraction form
    437,711.80/656,826.90 = 319,084.60/x
  3. Step 3: Cross multiply
    437,711.80x = 656,826.90 × 319,084.60
  4. Step 4: Simplify right side
    437,711.80x = 209,583,348,655.74
  5. Step 5: Solve for x
    x = 209,583,348,655.74/437,711.80
  6. Step 6: Final answer
    x = 478,815.85

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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.