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Finding the Fourth Proportional to 543,781, 750,438.84 and 302,081.92

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Solution

The fourth proportional to 543,781, 750,438.84 and 302,081.92 is: 416,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,781 : 750,438.84 = 302,081.92 : x
  2. Step 2: Convert to fraction form
    543,781/750,438.84 = 302,081.92/x
  3. Step 3: Cross multiply
    543,781x = 750,438.84 × 302,081.92
  4. Step 4: Simplify right side
    543,781x = 226,694,005,629.77
  5. Step 5: Solve for x
    x = 226,694,005,629.77/543,781
  6. Step 6: Final answer
    x = 416,884.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.