Home / 861,343.07-1,292,067.86-262,348.34

Finding the Fourth Proportional to 861,343.07, 1,292,067.86 and 262,348.34

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Solution

The fourth proportional to 861,343.07, 1,292,067.86 and 262,348.34 is: 393,538.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,343.07 : 1,292,067.86 = 262,348.34 : x
  2. Step 2: Convert to fraction form
    861,343.07/1,292,067.86 = 262,348.34/x
  3. Step 3: Cross multiply
    861,343.07x = 1,292,067.86 × 262,348.34
  4. Step 4: Simplify right side
    861,343.07x = 338,971,850,466.27
  5. Step 5: Solve for x
    x = 338,971,850,466.27/861,343.07
  6. Step 6: Final answer
    x = 393,538.72

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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.