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Finding the Fourth Proportional to 503,304.60, 754,956.90 and 408,826.20

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Solution

The fourth proportional to 503,304.60, 754,956.90 and 408,826.20 is: 613,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,304.60 : 754,956.90 = 408,826.20 : x
  2. Step 2: Convert to fraction form
    503,304.60/754,956.90 = 408,826.20/x
  3. Step 3: Cross multiply
    503,304.60x = 754,956.90 × 408,826.20
  4. Step 4: Simplify right side
    503,304.60x = 308,646,160,590.78
  5. Step 5: Solve for x
    x = 308,646,160,590.78/503,304.60
  6. Step 6: Final answer
    x = 613,239.30

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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.