Home / 1,489,734.60-2,235,768.30-691,115.10

Finding the Fourth Proportional to 1,489,734.60, 2,235,768.30 and 691,115.10

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Solution

The fourth proportional to 1,489,734.60, 2,235,768.30 and 691,115.10 is: 1,037,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,734.60 : 2,235,768.30 = 691,115.10 : x
  2. Step 2: Convert to fraction form
    1,489,734.60/2,235,768.30 = 691,115.10/x
  3. Step 3: Cross multiply
    1,489,734.60x = 2,235,768.30 × 691,115.10
  4. Step 4: Simplify right side
    1,489,734.60x = 1,545,173,232,231.33
  5. Step 5: Solve for x
    x = 1,545,173,232,231.33/1,489,734.60
  6. Step 6: Final answer
    x = 1,037,213.76

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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.