Home / 433,530.26-649,454.20-319,471.15

Finding the Fourth Proportional to 433,530.26, 649,454.20 and 319,471.15

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Solution

The fourth proportional to 433,530.26, 649,454.20 and 319,471.15 is: 478,586.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,530.26 : 649,454.20 = 319,471.15 : x
  2. Step 2: Convert to fraction form
    433,530.26/649,454.20 = 319,471.15/x
  3. Step 3: Cross multiply
    433,530.26x = 649,454.20 × 319,471.15
  4. Step 4: Simplify right side
    433,530.26x = 207,481,879,630.40
  5. Step 5: Solve for x
    x = 207,481,879,630.40/433,530.26
  6. Step 6: Final answer
    x = 478,586.84

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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.