Home / 693,078.11-1,039,616.46-260,876.28

Finding the Fourth Proportional to 693,078.11, 1,039,616.46 and 260,876.28

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Solution

The fourth proportional to 693,078.11, 1,039,616.46 and 260,876.28 is: 391,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,078.11 : 1,039,616.46 = 260,876.28 : x
  2. Step 2: Convert to fraction form
    693,078.11/1,039,616.46 = 260,876.28/x
  3. Step 3: Cross multiply
    693,078.11x = 1,039,616.46 × 260,876.28
  4. Step 4: Simplify right side
    693,078.11x = 271,211,274,711.57
  5. Step 5: Solve for x
    x = 271,211,274,711.57/693,078.11
  6. Step 6: Final answer
    x = 391,314.16

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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.