Home / 433,084.98-649,620.32-129,479.85

Finding the Fourth Proportional to 433,084.98, 649,620.32 and 129,479.85

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Solution

The fourth proportional to 433,084.98, 649,620.32 and 129,479.85 is: 194,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,084.98 : 649,620.32 = 129,479.85 : x
  2. Step 2: Convert to fraction form
    433,084.98/649,620.32 = 129,479.85/x
  3. Step 3: Cross multiply
    433,084.98x = 649,620.32 × 129,479.85
  4. Step 4: Simplify right side
    433,084.98x = 84,112,741,590.55
  5. Step 5: Solve for x
    x = 84,112,741,590.55/433,084.98
  6. Step 6: Final answer
    x = 194,217.64

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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.