Home / 825,508.26-1,137,658.86-643,932.54

Finding the Fourth Proportional to 825,508.26, 1,137,658.86 and 643,932.54

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Solution

The fourth proportional to 825,508.26, 1,137,658.86 and 643,932.54 is: 887,423.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,508.26 : 1,137,658.86 = 643,932.54 : x
  2. Step 2: Convert to fraction form
    825,508.26/1,137,658.86 = 643,932.54/x
  3. Step 3: Cross multiply
    825,508.26x = 1,137,658.86 × 643,932.54
  4. Step 4: Simplify right side
    825,508.26x = 732,575,559,373.31
  5. Step 5: Solve for x
    x = 732,575,559,373.31/825,508.26
  6. Step 6: Final answer
    x = 887,423.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.