Home / 861,440.15-1,292,354.66-285,061.97

Finding the Fourth Proportional to 861,440.15, 1,292,354.66 and 285,061.97

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Solution

The fourth proportional to 861,440.15, 1,292,354.66 and 285,061.97 is: 427,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,440.15 : 1,292,354.66 = 285,061.97 : x
  2. Step 2: Convert to fraction form
    861,440.15/1,292,354.66 = 285,061.97/x
  3. Step 3: Cross multiply
    861,440.15x = 1,292,354.66 × 285,061.97
  4. Step 4: Simplify right side
    861,440.15x = 368,401,157,431.20
  5. Step 5: Solve for x
    x = 368,401,157,431.20/861,440.15
  6. Step 6: Final answer
    x = 427,657.29

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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.