Home / 1,341,613.28-2,012,419.92-919,609.76

Finding the Fourth Proportional to 1,341,613.28, 2,012,419.92 and 919,609.76

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Solution

The fourth proportional to 1,341,613.28, 2,012,419.92 and 919,609.76 is: 1,379,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,613.28 : 2,012,419.92 = 919,609.76 : x
  2. Step 2: Convert to fraction form
    1,341,613.28/2,012,419.92 = 919,609.76/x
  3. Step 3: Cross multiply
    1,341,613.28x = 2,012,419.92 × 919,609.76
  4. Step 4: Simplify right side
    1,341,613.28x = 1,850,640,999,650.42
  5. Step 5: Solve for x
    x = 1,850,640,999,650.42/1,341,613.28
  6. Step 6: Final answer
    x = 1,379,414.64

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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.