Home / 726,162.73-1,088,247.61-459,445.78

Finding the Fourth Proportional to 726,162.73, 1,088,247.61 and 459,445.78

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Solution

The fourth proportional to 726,162.73, 1,088,247.61 and 459,445.78 is: 688,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,162.73 : 1,088,247.61 = 459,445.78 : x
  2. Step 2: Convert to fraction form
    726,162.73/1,088,247.61 = 459,445.78/x
  3. Step 3: Cross multiply
    726,162.73x = 1,088,247.61 × 459,445.78
  4. Step 4: Simplify right side
    726,162.73x = 499,990,768,299.12
  5. Step 5: Solve for x
    x = 499,990,768,299.12/726,162.73
  6. Step 6: Final answer
    x = 688,538.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.