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Finding the Fourth Proportional to 503,145.60, 755,301.60 and 303,691.20

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Solution

The fourth proportional to 503,145.60, 755,301.60 and 303,691.20 is: 455,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,145.60 : 755,301.60 = 303,691.20 : x
  2. Step 2: Convert to fraction form
    503,145.60/755,301.60 = 303,691.20/x
  3. Step 3: Cross multiply
    503,145.60x = 755,301.60 × 303,691.20
  4. Step 4: Simplify right side
    503,145.60x = 229,378,449,265.92
  5. Step 5: Solve for x
    x = 229,378,449,265.92/503,145.60
  6. Step 6: Final answer
    x = 455,888.81

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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.