Home / 805,165.20-1,210,080.60-791,168.40

Finding the Fourth Proportional to 805,165.20, 1,210,080.60 and 791,168.40

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Solution

The fourth proportional to 805,165.20, 1,210,080.60 and 791,168.40 is: 1,189,044.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,165.20 : 1,210,080.60 = 791,168.40 : x
  2. Step 2: Convert to fraction form
    805,165.20/1,210,080.60 = 791,168.40/x
  3. Step 3: Cross multiply
    805,165.20x = 1,210,080.60 × 791,168.40
  4. Step 4: Simplify right side
    805,165.20x = 957,377,532,173.04
  5. Step 5: Solve for x
    x = 957,377,532,173.04/805,165.20
  6. Step 6: Final answer
    x = 1,189,044.85

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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.