Home / 961,989.40-1,326,966.96-635,305.42

Finding the Fourth Proportional to 961,989.40, 1,326,966.96 and 635,305.42

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Solution

The fourth proportional to 961,989.40, 1,326,966.96 and 635,305.42 is: 876,339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,989.40 : 1,326,966.96 = 635,305.42 : x
  2. Step 2: Convert to fraction form
    961,989.40/1,326,966.96 = 635,305.42/x
  3. Step 3: Cross multiply
    961,989.40x = 1,326,966.96 × 635,305.42
  4. Step 4: Simplify right side
    961,989.40x = 843,029,302,316.43
  5. Step 5: Solve for x
    x = 843,029,302,316.43/961,989.40
  6. Step 6: Final answer
    x = 876,339.49

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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.