Home / 871,274.52-1,202,488.74-687,090.86

Finding the Fourth Proportional to 871,274.52, 1,202,488.74 and 687,090.86

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Solution

The fourth proportional to 871,274.52, 1,202,488.74 and 687,090.86 is: 948,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,274.52 : 1,202,488.74 = 687,090.86 : x
  2. Step 2: Convert to fraction form
    871,274.52/1,202,488.74 = 687,090.86/x
  3. Step 3: Cross multiply
    871,274.52x = 1,202,488.74 × 687,090.86
  4. Step 4: Simplify right side
    871,274.52x = 826,219,016,494.47
  5. Step 5: Solve for x
    x = 826,219,016,494.47/871,274.52
  6. Step 6: Final answer
    x = 948,287.82

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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.