Home / 393,319.60-589,982.64-112,845.76

Finding the Fourth Proportional to 393,319.60, 589,982.64 and 112,845.76

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Solution

The fourth proportional to 393,319.60, 589,982.64 and 112,845.76 is: 169,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,319.60 : 589,982.64 = 112,845.76 : x
  2. Step 2: Convert to fraction form
    393,319.60/589,982.64 = 112,845.76/x
  3. Step 3: Cross multiply
    393,319.60x = 589,982.64 × 112,845.76
  4. Step 4: Simplify right side
    393,319.60x = 66,577,039,397.61
  5. Step 5: Solve for x
    x = 66,577,039,397.61/393,319.60
  6. Step 6: Final answer
    x = 169,269.57

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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.