Home / 724,361.60-1,086,542.40-325,015.40

Finding the Fourth Proportional to 724,361.60, 1,086,542.40 and 325,015.40

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Solution

The fourth proportional to 724,361.60, 1,086,542.40 and 325,015.40 is: 487,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,361.60 : 1,086,542.40 = 325,015.40 : x
  2. Step 2: Convert to fraction form
    724,361.60/1,086,542.40 = 325,015.40/x
  3. Step 3: Cross multiply
    724,361.60x = 1,086,542.40 × 325,015.40
  4. Step 4: Simplify right side
    724,361.60x = 353,143,012,752.96
  5. Step 5: Solve for x
    x = 353,143,012,752.96/724,361.60
  6. Step 6: Final answer
    x = 487,523.10

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Similar ratio
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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.