Home / 851,127.62-1,174,555.82-469,160.78

Finding the Fourth Proportional to 851,127.62, 1,174,555.82 and 469,160.78

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Solution

The fourth proportional to 851,127.62, 1,174,555.82 and 469,160.78 is: 647,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,127.62 : 1,174,555.82 = 469,160.78 : x
  2. Step 2: Convert to fraction form
    851,127.62/1,174,555.82 = 469,160.78/x
  3. Step 3: Cross multiply
    851,127.62x = 1,174,555.82 × 469,160.78
  4. Step 4: Simplify right side
    851,127.62x = 551,055,519,964.86
  5. Step 5: Solve for x
    x = 551,055,519,964.86/851,127.62
  6. Step 6: Final answer
    x = 647,441.71

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1.5x scale

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.