Home / 1,131,049.60-1,560,808.96-621,748.32

Finding the Fourth Proportional to 1,131,049.60, 1,560,808.96 and 621,748.32

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Solution

The fourth proportional to 1,131,049.60, 1,560,808.96 and 621,748.32 is: 857,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,049.60 : 1,560,808.96 = 621,748.32 : x
  2. Step 2: Convert to fraction form
    1,131,049.60/1,560,808.96 = 621,748.32/x
  3. Step 3: Cross multiply
    1,131,049.60x = 1,560,808.96 × 621,748.32
  4. Step 4: Simplify right side
    1,131,049.60x = 970,430,348,720.95
  5. Step 5: Solve for x
    x = 970,430,348,720.95/1,131,049.60
  6. Step 6: Final answer
    x = 857,990.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.