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Finding the Fourth Proportional to 503,257.59, 753,719.99 and 303,140.61

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Solution

The fourth proportional to 503,257.59, 753,719.99 and 303,140.61 is: 454,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,257.59 : 753,719.99 = 303,140.61 : x
  2. Step 2: Convert to fraction form
    503,257.59/753,719.99 = 303,140.61/x
  3. Step 3: Cross multiply
    503,257.59x = 753,719.99 × 303,140.61
  4. Step 4: Simplify right side
    503,257.59x = 228,483,136,022.09
  5. Step 5: Solve for x
    x = 228,483,136,022.09/503,257.59
  6. Step 6: Final answer
    x = 454,008.33

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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.