Home / 891,613.38-1,337,109.03-392,705.22

Finding the Fourth Proportional to 891,613.38, 1,337,109.03 and 392,705.22

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Solution

The fourth proportional to 891,613.38, 1,337,109.03 and 392,705.22 is: 588,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,613.38 : 1,337,109.03 = 392,705.22 : x
  2. Step 2: Convert to fraction form
    891,613.38/1,337,109.03 = 392,705.22/x
  3. Step 3: Cross multiply
    891,613.38x = 1,337,109.03 × 392,705.22
  4. Step 4: Simplify right side
    891,613.38x = 525,089,695,790.14
  5. Step 5: Solve for x
    x = 525,089,695,790.14/891,613.38
  6. Step 6: Final answer
    x = 588,920.83

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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.