Home / 861,173.52-1,291,806.72-262,153.68

Finding the Fourth Proportional to 861,173.52, 1,291,806.72 and 262,153.68

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Solution

The fourth proportional to 861,173.52, 1,291,806.72 and 262,153.68 is: 393,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,173.52 : 1,291,806.72 = 262,153.68 : x
  2. Step 2: Convert to fraction form
    861,173.52/1,291,806.72 = 262,153.68/x
  3. Step 3: Cross multiply
    861,173.52x = 1,291,806.72 × 262,153.68
  4. Step 4: Simplify right side
    861,173.52x = 338,651,885,496.73
  5. Step 5: Solve for x
    x = 338,651,885,496.73/861,173.52
  6. Step 6: Final answer
    x = 393,244.66

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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.