Home / 724,949.04-1,000,401.82-402,679.69

Finding the Fourth Proportional to 724,949.04, 1,000,401.82 and 402,679.69

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Solution

The fourth proportional to 724,949.04, 1,000,401.82 and 402,679.69 is: 555,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,949.04 : 1,000,401.82 = 402,679.69 : x
  2. Step 2: Convert to fraction form
    724,949.04/1,000,401.82 = 402,679.69/x
  3. Step 3: Cross multiply
    724,949.04x = 1,000,401.82 × 402,679.69
  4. Step 4: Simplify right side
    724,949.04x = 402,841,494,753.04
  5. Step 5: Solve for x
    x = 402,841,494,753.04/724,949.04
  6. Step 6: Final answer
    x = 555,682.50

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Double scale
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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.