Home / 747,916.20-1,121,218.20-448,515.90

Finding the Fourth Proportional to 747,916.20, 1,121,218.20 and 448,515.90

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Solution

The fourth proportional to 747,916.20, 1,121,218.20 and 448,515.90 is: 672,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,916.20 : 1,121,218.20 = 448,515.90 : x
  2. Step 2: Convert to fraction form
    747,916.20/1,121,218.20 = 448,515.90/x
  3. Step 3: Cross multiply
    747,916.20x = 1,121,218.20 × 448,515.90
  4. Step 4: Simplify right side
    747,916.20x = 502,884,190,069.38
  5. Step 5: Solve for x
    x = 502,884,190,069.38/747,916.20
  6. Step 6: Final answer
    x = 672,380.40

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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.