Home / 498,311.20-747,466.80-143,304.40

Finding the Fourth Proportional to 498,311.20, 747,466.80 and 143,304.40

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Solution

The fourth proportional to 498,311.20, 747,466.80 and 143,304.40 is: 214,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,311.20 : 747,466.80 = 143,304.40 : x
  2. Step 2: Convert to fraction form
    498,311.20/747,466.80 = 143,304.40/x
  3. Step 3: Cross multiply
    498,311.20x = 747,466.80 × 143,304.40
  4. Step 4: Simplify right side
    498,311.20x = 107,115,281,293.92
  5. Step 5: Solve for x
    x = 107,115,281,293.92/498,311.20
  6. Step 6: Final answer
    x = 214,956.60

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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.