Home / 485,180.40-727,900.20-432,951.60

Finding the Fourth Proportional to 485,180.40, 727,900.20 and 432,951.60

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Solution

The fourth proportional to 485,180.40, 727,900.20 and 432,951.60 is: 649,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,180.40 : 727,900.20 = 432,951.60 : x
  2. Step 2: Convert to fraction form
    485,180.40/727,900.20 = 432,951.60/x
  3. Step 3: Cross multiply
    485,180.40x = 727,900.20 × 432,951.60
  4. Step 4: Simplify right side
    485,180.40x = 315,145,556,230.32
  5. Step 5: Solve for x
    x = 315,145,556,230.32/485,180.40
  6. Step 6: Final answer
    x = 649,543.05

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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.