Home / 693,581.60-1,040,372.40-220,314.80

Finding the Fourth Proportional to 693,581.60, 1,040,372.40 and 220,314.80

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Solution

The fourth proportional to 693,581.60, 1,040,372.40 and 220,314.80 is: 330,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,581.60 : 1,040,372.40 = 220,314.80 : x
  2. Step 2: Convert to fraction form
    693,581.60/1,040,372.40 = 220,314.80/x
  3. Step 3: Cross multiply
    693,581.60x = 1,040,372.40 × 220,314.80
  4. Step 4: Simplify right side
    693,581.60x = 229,209,437,231.52
  5. Step 5: Solve for x
    x = 229,209,437,231.52/693,581.60
  6. Step 6: Final answer
    x = 330,472.20

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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.