Home / 419,988.12-629,984.66-104,445.04

Finding the Fourth Proportional to 419,988.12, 629,984.66 and 104,445.04

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Solution

The fourth proportional to 419,988.12, 629,984.66 and 104,445.04 is: 156,668.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,988.12 : 629,984.66 = 104,445.04 : x
  2. Step 2: Convert to fraction form
    419,988.12/629,984.66 = 104,445.04/x
  3. Step 3: Cross multiply
    419,988.12x = 629,984.66 × 104,445.04
  4. Step 4: Simplify right side
    419,988.12x = 65,798,773,013.09
  5. Step 5: Solve for x
    x = 65,798,773,013.09/419,988.12
  6. Step 6: Final answer
    x = 156,668.18

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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.