Home / 724,499.60-1,086,749.40-455,061.20

Finding the Fourth Proportional to 724,499.60, 1,086,749.40 and 455,061.20

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Solution

The fourth proportional to 724,499.60, 1,086,749.40 and 455,061.20 is: 682,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,499.60 : 1,086,749.40 = 455,061.20 : x
  2. Step 2: Convert to fraction form
    724,499.60/1,086,749.40 = 455,061.20/x
  3. Step 3: Cross multiply
    724,499.60x = 1,086,749.40 × 455,061.20
  4. Step 4: Simplify right side
    724,499.60x = 494,537,486,063.28
  5. Step 5: Solve for x
    x = 494,537,486,063.28/724,499.60
  6. Step 6: Final answer
    x = 682,591.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.