Home / 478,581.41-660,446.78-263,729.17

Finding the Fourth Proportional to 478,581.41, 660,446.78 and 263,729.17

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Solution

The fourth proportional to 478,581.41, 660,446.78 and 263,729.17 is: 363,948.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,581.41 : 660,446.78 = 263,729.17 : x
  2. Step 2: Convert to fraction form
    478,581.41/660,446.78 = 263,729.17/x
  3. Step 3: Cross multiply
    478,581.41x = 660,446.78 × 263,729.17
  4. Step 4: Simplify right side
    478,581.41x = 174,179,079,632.29
  5. Step 5: Solve for x
    x = 174,179,079,632.29/478,581.41
  6. Step 6: Final answer
    x = 363,948.69

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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.