Home / 1,315,832.20-1,974,404.40-747,649.60

Finding the Fourth Proportional to 1,315,832.20, 1,974,404.40 and 747,649.60

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Solution

The fourth proportional to 1,315,832.20, 1,974,404.40 and 747,649.60 is: 1,121,847.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,832.20 : 1,974,404.40 = 747,649.60 : x
  2. Step 2: Convert to fraction form
    1,315,832.20/1,974,404.40 = 747,649.60/x
  3. Step 3: Cross multiply
    1,315,832.20x = 1,974,404.40 × 747,649.60
  4. Step 4: Simplify right side
    1,315,832.20x = 1,476,162,659,898.24
  5. Step 5: Solve for x
    x = 1,476,162,659,898.24/1,315,832.20
  6. Step 6: Final answer
    x = 1,121,847.19

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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.