Home / 745,631.68-1,029,105.15-439,689.52

Finding the Fourth Proportional to 745,631.68, 1,029,105.15 and 439,689.52

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Solution

The fourth proportional to 745,631.68, 1,029,105.15 and 439,689.52 is: 606,850.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,631.68 : 1,029,105.15 = 439,689.52 : x
  2. Step 2: Convert to fraction form
    745,631.68/1,029,105.15 = 439,689.52/x
  3. Step 3: Cross multiply
    745,631.68x = 1,029,105.15 × 439,689.52
  4. Step 4: Simplify right side
    745,631.68x = 452,486,745,755.11
  5. Step 5: Solve for x
    x = 452,486,745,755.11/745,631.68
  6. Step 6: Final answer
    x = 606,850.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.