Home / 813,062.92-1,121,989.03-445,537.87

Finding the Fourth Proportional to 813,062.92, 1,121,989.03 and 445,537.87

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Solution

The fourth proportional to 813,062.92, 1,121,989.03 and 445,537.87 is: 614,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,062.92 : 1,121,989.03 = 445,537.87 : x
  2. Step 2: Convert to fraction form
    813,062.92/1,121,989.03 = 445,537.87/x
  3. Step 3: Cross multiply
    813,062.92x = 1,121,989.03 × 445,537.87
  4. Step 4: Simplify right side
    813,062.92x = 499,888,602,878.21
  5. Step 5: Solve for x
    x = 499,888,602,878.21/813,062.92
  6. Step 6: Final answer
    x = 614,821.55

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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.