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Finding the Fourth Proportional to 503,135.60, 755,286.60 and 303,681.20

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Solution

The fourth proportional to 503,135.60, 755,286.60 and 303,681.20 is: 455,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,135.60 : 755,286.60 = 303,681.20 : x
  2. Step 2: Convert to fraction form
    503,135.60/755,286.60 = 303,681.20/x
  3. Step 3: Cross multiply
    503,135.60x = 755,286.60 × 303,681.20
  4. Step 4: Simplify right side
    503,135.60x = 229,366,341,031.92
  5. Step 5: Solve for x
    x = 229,366,341,031.92/503,135.60
  6. Step 6: Final answer
    x = 455,873.81

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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.