Home / 853,087.38-1,176,719.89-648,690.20

Finding the Fourth Proportional to 853,087.38, 1,176,719.89 and 648,690.20

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Solution

The fourth proportional to 853,087.38, 1,176,719.89 and 648,690.20 is: 894,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,087.38 : 1,176,719.89 = 648,690.20 : x
  2. Step 2: Convert to fraction form
    853,087.38/1,176,719.89 = 648,690.20/x
  3. Step 3: Cross multiply
    853,087.38x = 1,176,719.89 × 648,690.20
  4. Step 4: Simplify right side
    853,087.38x = 763,326,660,788.08
  5. Step 5: Solve for x
    x = 763,326,660,788.08/853,087.38
  6. Step 6: Final answer
    x = 894,781.33

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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.