Home / 813,407.85-1,220,105.61-244,786.50

Finding the Fourth Proportional to 813,407.85, 1,220,105.61 and 244,786.50

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Solution

The fourth proportional to 813,407.85, 1,220,105.61 and 244,786.50 is: 367,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,407.85 : 1,220,105.61 = 244,786.50 : x
  2. Step 2: Convert to fraction form
    813,407.85/1,220,105.61 = 244,786.50/x
  3. Step 3: Cross multiply
    813,407.85x = 1,220,105.61 × 244,786.50
  4. Step 4: Simplify right side
    813,407.85x = 298,665,381,902.27
  5. Step 5: Solve for x
    x = 298,665,381,902.27/813,407.85
  6. Step 6: Final answer
    x = 367,177.89

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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.