Home / 861,965.64-1,292,061.30-382,419.27

Finding the Fourth Proportional to 861,965.64, 1,292,061.30 and 382,419.27

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Solution

The fourth proportional to 861,965.64, 1,292,061.30 and 382,419.27 is: 573,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,965.64 : 1,292,061.30 = 382,419.27 : x
  2. Step 2: Convert to fraction form
    861,965.64/1,292,061.30 = 382,419.27/x
  3. Step 3: Cross multiply
    861,965.64x = 1,292,061.30 × 382,419.27
  4. Step 4: Simplify right side
    861,965.64x = 494,109,139,141.25
  5. Step 5: Solve for x
    x = 494,109,139,141.25/861,965.64
  6. Step 6: Final answer
    x = 573,235.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.