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Finding the Fourth Proportional to 409,895.80, 614,454.90 and 367,905.40

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Solution

The fourth proportional to 409,895.80, 614,454.90 and 367,905.40 is: 551,509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,895.80 : 614,454.90 = 367,905.40 : x
  2. Step 2: Convert to fraction form
    409,895.80/614,454.90 = 367,905.40/x
  3. Step 3: Cross multiply
    409,895.80x = 614,454.90 × 367,905.40
  4. Step 4: Simplify right side
    409,895.80x = 226,061,275,766.46
  5. Step 5: Solve for x
    x = 226,061,275,766.46/409,895.80
  6. Step 6: Final answer
    x = 551,509.13

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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.