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Finding the Fourth Proportional to 647,019.20, 970,528.80 and 226,337.60

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Solution

The fourth proportional to 647,019.20, 970,528.80 and 226,337.60 is: 339,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,019.20 : 970,528.80 = 226,337.60 : x
  2. Step 2: Convert to fraction form
    647,019.20/970,528.80 = 226,337.60/x
  3. Step 3: Cross multiply
    647,019.20x = 970,528.80 × 226,337.60
  4. Step 4: Simplify right side
    647,019.20x = 219,667,159,322.88
  5. Step 5: Solve for x
    x = 219,667,159,322.88/647,019.20
  6. Step 6: Final answer
    x = 339,506.40

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Double scale
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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.