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Finding the Fourth Proportional to 479,672.28, 661,943.76 and 264,807.76

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Solution

The fourth proportional to 479,672.28, 661,943.76 and 264,807.76 is: 365,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,672.28 : 661,943.76 = 264,807.76 : x
  2. Step 2: Convert to fraction form
    479,672.28/661,943.76 = 264,807.76/x
  3. Step 3: Cross multiply
    479,672.28x = 661,943.76 × 264,807.76
  4. Step 4: Simplify right side
    479,672.28x = 175,287,844,331.58
  5. Step 5: Solve for x
    x = 175,287,844,331.58/479,672.28
  6. Step 6: Final answer
    x = 365,432.51

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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.