Home / 1,678,245.49-2,518,155.55-836,862.85

Finding the Fourth Proportional to 1,678,245.49, 2,518,155.55 and 836,862.85

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Solution

The fourth proportional to 1,678,245.49, 2,518,155.55 and 836,862.85 is: 1,255,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,245.49 : 2,518,155.55 = 836,862.85 : x
  2. Step 2: Convert to fraction form
    1,678,245.49/2,518,155.55 = 836,862.85/x
  3. Step 3: Cross multiply
    1,678,245.49x = 2,518,155.55 × 836,862.85
  4. Step 4: Simplify right side
    1,678,245.49x = 2,107,350,815,633.38
  5. Step 5: Solve for x
    x = 2,107,350,815,633.38/1,678,245.49
  6. Step 6: Final answer
    x = 1,255,686.87

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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.