Home / 457,087.60-685,631.40-220,891.60

Finding the Fourth Proportional to 457,087.60, 685,631.40 and 220,891.60

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Solution

The fourth proportional to 457,087.60, 685,631.40 and 220,891.60 is: 331,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,087.60 : 685,631.40 = 220,891.60 : x
  2. Step 2: Convert to fraction form
    457,087.60/685,631.40 = 220,891.60/x
  3. Step 3: Cross multiply
    457,087.60x = 685,631.40 × 220,891.60
  4. Step 4: Simplify right side
    457,087.60x = 151,450,216,956.24
  5. Step 5: Solve for x
    x = 151,450,216,956.24/457,087.60
  6. Step 6: Final answer
    x = 331,337.40

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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.