Home / 851,439.89-1,174,926.92-469,458.47

Finding the Fourth Proportional to 851,439.89, 1,174,926.92 and 469,458.47

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Solution

The fourth proportional to 851,439.89, 1,174,926.92 and 469,458.47 is: 647,819.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,439.89 : 1,174,926.92 = 469,458.47 : x
  2. Step 2: Convert to fraction form
    851,439.89/1,174,926.92 = 469,458.47/x
  3. Step 3: Cross multiply
    851,439.89x = 1,174,926.92 × 469,458.47
  4. Step 4: Simplify right side
    851,439.89x = 551,579,386,003.09
  5. Step 5: Solve for x
    x = 551,579,386,003.09/851,439.89
  6. Step 6: Final answer
    x = 647,819.53

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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.