Home / 432,869.40-649,304.10-243,912.60

Finding the Fourth Proportional to 432,869.40, 649,304.10 and 243,912.60

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Solution

The fourth proportional to 432,869.40, 649,304.10 and 243,912.60 is: 365,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,869.40 : 649,304.10 = 243,912.60 : x
  2. Step 2: Convert to fraction form
    432,869.40/649,304.10 = 243,912.60/x
  3. Step 3: Cross multiply
    432,869.40x = 649,304.10 × 243,912.60
  4. Step 4: Simplify right side
    432,869.40x = 158,373,451,221.66
  5. Step 5: Solve for x
    x = 158,373,451,221.66/432,869.40
  6. Step 6: Final answer
    x = 365,868.90

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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.