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Finding the Fourth Proportional to 409,625.80, 614,438.70 and 376,448.20

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Solution

The fourth proportional to 409,625.80, 614,438.70 and 376,448.20 is: 564,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,625.80 : 614,438.70 = 376,448.20 : x
  2. Step 2: Convert to fraction form
    409,625.80/614,438.70 = 376,448.20/x
  3. Step 3: Cross multiply
    409,625.80x = 614,438.70 × 376,448.20
  4. Step 4: Simplify right side
    409,625.80x = 231,304,342,625.34
  5. Step 5: Solve for x
    x = 231,304,342,625.34/409,625.80
  6. Step 6: Final answer
    x = 564,672.30

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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.