Home / 915,449.17-1,373,402.05-646,103.41

Finding the Fourth Proportional to 915,449.17, 1,373,402.05 and 646,103.41

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Solution

The fourth proportional to 915,449.17, 1,373,402.05 and 646,103.41 is: 969,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,449.17 : 1,373,402.05 = 646,103.41 : x
  2. Step 2: Convert to fraction form
    915,449.17/1,373,402.05 = 646,103.41/x
  3. Step 3: Cross multiply
    915,449.17x = 1,373,402.05 × 646,103.41
  4. Step 4: Simplify right side
    915,449.17x = 887,359,747,805.99
  5. Step 5: Solve for x
    x = 887,359,747,805.99/915,449.17
  6. Step 6: Final answer
    x = 969,316.24

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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.