Home / 862,893.04-1,190,876.64-644,723.14

Finding the Fourth Proportional to 862,893.04, 1,190,876.64 and 644,723.14

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Solution

The fourth proportional to 862,893.04, 1,190,876.64 and 644,723.14 is: 889,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,893.04 : 1,190,876.64 = 644,723.14 : x
  2. Step 2: Convert to fraction form
    862,893.04/1,190,876.64 = 644,723.14/x
  3. Step 3: Cross multiply
    862,893.04x = 1,190,876.64 × 644,723.14
  4. Step 4: Simplify right side
    862,893.04x = 767,785,726,693.45
  5. Step 5: Solve for x
    x = 767,785,726,693.45/862,893.04
  6. Step 6: Final answer
    x = 889,780.88

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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.