Home / 861,760.11-1,292,931.32-381,922.29

Finding the Fourth Proportional to 861,760.11, 1,292,931.32 and 381,922.29

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Solution

The fourth proportional to 861,760.11, 1,292,931.32 and 381,922.29 is: 573,012.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,760.11 : 1,292,931.32 = 381,922.29 : x
  2. Step 2: Convert to fraction form
    861,760.11/1,292,931.32 = 381,922.29/x
  3. Step 3: Cross multiply
    861,760.11x = 1,292,931.32 × 381,922.29
  4. Step 4: Simplify right side
    861,760.11x = 493,799,288,637.51
  5. Step 5: Solve for x
    x = 493,799,288,637.51/861,760.11
  6. Step 6: Final answer
    x = 573,012.47

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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.