Home / 479,427.56-661,589.27-261,630.71

Finding the Fourth Proportional to 479,427.56, 661,589.27 and 261,630.71

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Solution

The fourth proportional to 479,427.56, 661,589.27 and 261,630.71 is: 361,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,427.56 : 661,589.27 = 261,630.71 : x
  2. Step 2: Convert to fraction form
    479,427.56/661,589.27 = 261,630.71/x
  3. Step 3: Cross multiply
    479,427.56x = 661,589.27 × 261,630.71
  4. Step 4: Simplify right side
    479,427.56x = 173,092,069,284.46
  5. Step 5: Solve for x
    x = 173,092,069,284.46/479,427.56
  6. Step 6: Final answer
    x = 361,039.05

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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.