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Finding the Fourth Proportional to 633,959.28, 950,005.80 and 278,647.92

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Solution

The fourth proportional to 633,959.28, 950,005.80 and 278,647.92 is: 417,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,959.28 : 950,005.80 = 278,647.92 : x
  2. Step 2: Convert to fraction form
    633,959.28/950,005.80 = 278,647.92/x
  3. Step 3: Cross multiply
    633,959.28x = 950,005.80 × 278,647.92
  4. Step 4: Simplify right side
    633,959.28x = 264,717,140,157.94
  5. Step 5: Solve for x
    x = 264,717,140,157.94/633,959.28
  6. Step 6: Final answer
    x = 417,561.74

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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.