Home / 724,381.20-1,086,523.20-191,890.80

Finding the Fourth Proportional to 724,381.20, 1,086,523.20 and 191,890.80

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Solution

The fourth proportional to 724,381.20, 1,086,523.20 and 191,890.80 is: 287,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,381.20 : 1,086,523.20 = 191,890.80 : x
  2. Step 2: Convert to fraction form
    724,381.20/1,086,523.20 = 191,890.80/x
  3. Step 3: Cross multiply
    724,381.20x = 1,086,523.20 × 191,890.80
  4. Step 4: Simplify right side
    724,381.20x = 208,493,806,066.56
  5. Step 5: Solve for x
    x = 208,493,806,066.56/724,381.20
  6. Step 6: Final answer
    x = 287,823.33

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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.