Home / 1,385,280.90-2,074,422.15-1,105,344.90

Finding the Fourth Proportional to 1,385,280.90, 2,074,422.15 and 1,105,344.90

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Solution

The fourth proportional to 1,385,280.90, 2,074,422.15 and 1,105,344.90 is: 1,655,225.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,280.90 : 2,074,422.15 = 1,105,344.90 : x
  2. Step 2: Convert to fraction form
    1,385,280.90/2,074,422.15 = 1,105,344.90/x
  3. Step 3: Cross multiply
    1,385,280.90x = 2,074,422.15 × 1,105,344.90
  4. Step 4: Simplify right side
    1,385,280.90x = 2,292,951,943,949.53
  5. Step 5: Solve for x
    x = 2,292,951,943,949.53/1,385,280.90
  6. Step 6: Final answer
    x = 1,655,225.26

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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.