Home / 724,805.92-1,000,198.32-402,536.80

Finding the Fourth Proportional to 724,805.92, 1,000,198.32 and 402,536.80

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Solution

The fourth proportional to 724,805.92, 1,000,198.32 and 402,536.80 is: 555,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,805.92 : 1,000,198.32 = 402,536.80 : x
  2. Step 2: Convert to fraction form
    724,805.92/1,000,198.32 = 402,536.80/x
  3. Step 3: Cross multiply
    724,805.92x = 1,000,198.32 × 402,536.80
  4. Step 4: Simplify right side
    724,805.92x = 402,616,631,098.18
  5. Step 5: Solve for x
    x = 402,616,631,098.18/724,805.92
  6. Step 6: Final answer
    x = 555,481.98

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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.