Home / 724,824.92-1,000,230.98-402,555.78

Finding the Fourth Proportional to 724,824.92, 1,000,230.98 and 402,555.78

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Solution

The fourth proportional to 724,824.92, 1,000,230.98 and 402,555.78 is: 555,511.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,824.92 : 1,000,230.98 = 402,555.78 : x
  2. Step 2: Convert to fraction form
    724,824.92/1,000,230.98 = 402,555.78/x
  3. Step 3: Cross multiply
    724,824.92x = 1,000,230.98 × 402,555.78
  4. Step 4: Simplify right side
    724,824.92x = 402,648,760,321.29
  5. Step 5: Solve for x
    x = 402,648,760,321.29/724,824.92
  6. Step 6: Final answer
    x = 555,511.75

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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.