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Finding the Fourth Proportional to 650,521.62, 976,198.74 and 351,210.78

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Solution

The fourth proportional to 650,521.62, 976,198.74 and 351,210.78 is: 527,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,521.62 : 976,198.74 = 351,210.78 : x
  2. Step 2: Convert to fraction form
    650,521.62/976,198.74 = 351,210.78/x
  3. Step 3: Cross multiply
    650,521.62x = 976,198.74 × 351,210.78
  4. Step 4: Simplify right side
    650,521.62x = 342,851,520,910.42
  5. Step 5: Solve for x
    x = 342,851,520,910.42/650,521.62
  6. Step 6: Final answer
    x = 527,040.93

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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.