Home / 813,472.92-1,122,659.82-451,010.46

Finding the Fourth Proportional to 813,472.92, 1,122,659.82 and 451,010.46

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Solution

The fourth proportional to 813,472.92, 1,122,659.82 and 451,010.46 is: 622,431.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,472.92 : 1,122,659.82 = 451,010.46 : x
  2. Step 2: Convert to fraction form
    813,472.92/1,122,659.82 = 451,010.46/x
  3. Step 3: Cross multiply
    813,472.92x = 1,122,659.82 × 451,010.46
  4. Step 4: Simplify right side
    813,472.92x = 506,331,321,841.72
  5. Step 5: Solve for x
    x = 506,331,321,841.72/813,472.92
  6. Step 6: Final answer
    x = 622,431.69

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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.