Home / 853,801.58-1,281,568.97-427,642.76

Finding the Fourth Proportional to 853,801.58, 1,281,568.97 and 427,642.76

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Solution

The fourth proportional to 853,801.58, 1,281,568.97 and 427,642.76 is: 641,898.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,801.58 : 1,281,568.97 = 427,642.76 : x
  2. Step 2: Convert to fraction form
    853,801.58/1,281,568.97 = 427,642.76/x
  3. Step 3: Cross multiply
    853,801.58x = 1,281,568.97 × 427,642.76
  4. Step 4: Simplify right side
    853,801.58x = 548,053,686,122.42
  5. Step 5: Solve for x
    x = 548,053,686,122.42/853,801.58
  6. Step 6: Final answer
    x = 641,898.19

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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.