Home / 851,278.86-1,174,773.92-469,319.31

Finding the Fourth Proportional to 851,278.86, 1,174,773.92 and 469,319.31

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Solution

The fourth proportional to 851,278.86, 1,174,773.92 and 469,319.31 is: 647,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,278.86 : 1,174,773.92 = 469,319.31 : x
  2. Step 2: Convert to fraction form
    851,278.86/1,174,773.92 = 469,319.31/x
  3. Step 3: Cross multiply
    851,278.86x = 1,174,773.92 × 469,319.31
  4. Step 4: Simplify right side
    851,278.86x = 551,344,083,193.80
  5. Step 5: Solve for x
    x = 551,344,083,193.80/851,278.86
  6. Step 6: Final answer
    x = 647,665.66

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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.