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Finding the Fourth Proportional to 633,953.28, 949,996.80 and 278,641.92

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Solution

The fourth proportional to 633,953.28, 949,996.80 and 278,641.92 is: 417,552.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,953.28 : 949,996.80 = 278,641.92 : x
  2. Step 2: Convert to fraction form
    633,953.28/949,996.80 = 278,641.92/x
  3. Step 3: Cross multiply
    633,953.28x = 949,996.80 × 278,641.92
  4. Step 4: Simplify right side
    633,953.28x = 264,708,932,345.86
  5. Step 5: Solve for x
    x = 264,708,932,345.86/633,953.28
  6. Step 6: Final answer
    x = 417,552.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.