Home / 1,384,480.96-1,910,585.28-780,868.96

Finding the Fourth Proportional to 1,384,480.96, 1,910,585.28 and 780,868.96

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Solution

The fourth proportional to 1,384,480.96, 1,910,585.28 and 780,868.96 is: 1,077,600.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,480.96 : 1,910,585.28 = 780,868.96 : x
  2. Step 2: Convert to fraction form
    1,384,480.96/1,910,585.28 = 780,868.96/x
  3. Step 3: Cross multiply
    1,384,480.96x = 1,910,585.28 × 780,868.96
  4. Step 4: Simplify right side
    1,384,480.96x = 1,491,916,740,584.91
  5. Step 5: Solve for x
    x = 1,491,916,740,584.91/1,384,480.96
  6. Step 6: Final answer
    x = 1,077,600.04

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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.