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Finding the Fourth Proportional to 503,419.60, 755,712.60 and 303,965.20

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Solution

The fourth proportional to 503,419.60, 755,712.60 and 303,965.20 is: 456,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,419.60 : 755,712.60 = 303,965.20 : x
  2. Step 2: Convert to fraction form
    503,419.60/755,712.60 = 303,965.20/x
  3. Step 3: Cross multiply
    503,419.60x = 755,712.60 × 303,965.20
  4. Step 4: Simplify right side
    503,419.60x = 229,710,331,601.52
  5. Step 5: Solve for x
    x = 229,710,331,601.52/503,419.60
  6. Step 6: Final answer
    x = 456,299.94

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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.