Home / 861,193.89-1,292,067.45-262,270.98

Finding the Fourth Proportional to 861,193.89, 1,292,067.45 and 262,270.98

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Solution

The fourth proportional to 861,193.89, 1,292,067.45 and 262,270.98 is: 393,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,193.89 : 1,292,067.45 = 262,270.98 : x
  2. Step 2: Convert to fraction form
    861,193.89/1,292,067.45 = 262,270.98/x
  3. Step 3: Cross multiply
    861,193.89x = 1,292,067.45 × 262,270.98
  4. Step 4: Simplify right side
    861,193.89x = 338,871,796,337.60
  5. Step 5: Solve for x
    x = 338,871,796,337.60/861,193.89
  6. Step 6: Final answer
    x = 393,490.71

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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.