Home / 1,354,391.42-1,869,250.57-838,310.85

Finding the Fourth Proportional to 1,354,391.42, 1,869,250.57 and 838,310.85

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Solution

The fourth proportional to 1,354,391.42, 1,869,250.57 and 838,310.85 is: 1,156,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,391.42 : 1,869,250.57 = 838,310.85 : x
  2. Step 2: Convert to fraction form
    1,354,391.42/1,869,250.57 = 838,310.85/x
  3. Step 3: Cross multiply
    1,354,391.42x = 1,869,250.57 × 838,310.85
  4. Step 4: Simplify right side
    1,354,391.42x = 1,567,013,034,199.68
  5. Step 5: Solve for x
    x = 1,567,013,034,199.68/1,354,391.42
  6. Step 6: Final answer
    x = 1,156,986.83

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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.