Home / 432,613.40-648,911.56-129,213.04

Finding the Fourth Proportional to 432,613.40, 648,911.56 and 129,213.04

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Solution

The fourth proportional to 432,613.40, 648,911.56 and 129,213.04 is: 193,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,613.40 : 648,911.56 = 129,213.04 : x
  2. Step 2: Convert to fraction form
    432,613.40/648,911.56 = 129,213.04/x
  3. Step 3: Cross multiply
    432,613.40x = 648,911.56 × 129,213.04
  4. Step 4: Simplify right side
    432,613.40x = 83,847,831,468.12
  5. Step 5: Solve for x
    x = 83,847,831,468.12/432,613.40
  6. Step 6: Final answer
    x = 193,817.00

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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.