Home / 813,862.58-1,123,143.83-451,301.72

Finding the Fourth Proportional to 813,862.58, 1,123,143.83 and 451,301.72

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Solution

The fourth proportional to 813,862.58, 1,123,143.83 and 451,301.72 is: 622,803.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,862.58 : 1,123,143.83 = 451,301.72 : x
  2. Step 2: Convert to fraction form
    813,862.58/1,123,143.83 = 451,301.72/x
  3. Step 3: Cross multiply
    813,862.58x = 1,123,143.83 × 451,301.72
  4. Step 4: Simplify right side
    813,862.58x = 506,876,734,414.16
  5. Step 5: Solve for x
    x = 506,876,734,414.16/813,862.58
  6. Step 6: Final answer
    x = 622,803.84

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1.5x scale

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.