Home / 693,626.40-1,040,180.40-272,815.20

Finding the Fourth Proportional to 693,626.40, 1,040,180.40 and 272,815.20

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Solution

The fourth proportional to 693,626.40, 1,040,180.40 and 272,815.20 is: 409,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,626.40 : 1,040,180.40 = 272,815.20 : x
  2. Step 2: Convert to fraction form
    693,626.40/1,040,180.40 = 272,815.20/x
  3. Step 3: Cross multiply
    693,626.40x = 1,040,180.40 × 272,815.20
  4. Step 4: Simplify right side
    693,626.40x = 283,777,023,862.08
  5. Step 5: Solve for x
    x = 283,777,023,862.08/693,626.40
  6. Step 6: Final answer
    x = 409,120.85

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1.5x scale

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.