Home / 813,149.28-1,122,162.22-473,639.40

Finding the Fourth Proportional to 813,149.28, 1,122,162.22 and 473,639.40

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Solution

The fourth proportional to 813,149.28, 1,122,162.22 and 473,639.40 is: 653,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,149.28 : 1,122,162.22 = 473,639.40 : x
  2. Step 2: Convert to fraction form
    813,149.28/1,122,162.22 = 473,639.40/x
  3. Step 3: Cross multiply
    813,149.28x = 1,122,162.22 × 473,639.40
  4. Step 4: Simplify right side
    813,149.28x = 531,500,240,583.47
  5. Step 5: Solve for x
    x = 531,500,240,583.47/813,149.28
  6. Step 6: Final answer
    x = 653,631.82

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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.