Home / 1,123,540.60-1,685,310.90-413,421.70

Finding the Fourth Proportional to 1,123,540.60, 1,685,310.90 and 413,421.70

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Solution

The fourth proportional to 1,123,540.60, 1,685,310.90 and 413,421.70 is: 620,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,540.60 : 1,685,310.90 = 413,421.70 : x
  2. Step 2: Convert to fraction form
    1,123,540.60/1,685,310.90 = 413,421.70/x
  3. Step 3: Cross multiply
    1,123,540.60x = 1,685,310.90 × 413,421.70
  4. Step 4: Simplify right side
    1,123,540.60x = 696,744,097,306.53
  5. Step 5: Solve for x
    x = 696,744,097,306.53/1,123,540.60
  6. Step 6: Final answer
    x = 620,132.55

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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.