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Finding the Fourth Proportional to 503,670.78, 755,506.20 and 171,246.78

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Solution

The fourth proportional to 503,670.78, 755,506.20 and 171,246.78 is: 256,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,670.78 : 755,506.20 = 171,246.78 : x
  2. Step 2: Convert to fraction form
    503,670.78/755,506.20 = 171,246.78/x
  3. Step 3: Cross multiply
    503,670.78x = 755,506.20 × 171,246.78
  4. Step 4: Simplify right side
    503,670.78x = 129,378,004,020.04
  5. Step 5: Solve for x
    x = 129,378,004,020.04/503,670.78
  6. Step 6: Final answer
    x = 256,870.18

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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.