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Finding the Fourth Proportional to 486,071.60, 729,107.40 and 170,414.60

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Solution

The fourth proportional to 486,071.60, 729,107.40 and 170,414.60 is: 255,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,071.60 : 729,107.40 = 170,414.60 : x
  2. Step 2: Convert to fraction form
    486,071.60/729,107.40 = 170,414.60/x
  3. Step 3: Cross multiply
    486,071.60x = 729,107.40 × 170,414.60
  4. Step 4: Simplify right side
    486,071.60x = 124,250,545,928.04
  5. Step 5: Solve for x
    x = 124,250,545,928.04/486,071.60
  6. Step 6: Final answer
    x = 255,621.90

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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.