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Finding the Fourth Proportional to 393,469.10, 589,328.85 and 304,433.90

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Solution

The fourth proportional to 393,469.10, 589,328.85 and 304,433.90 is: 455,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,469.10 : 589,328.85 = 304,433.90 : x
  2. Step 2: Convert to fraction form
    393,469.10/589,328.85 = 304,433.90/x
  3. Step 3: Cross multiply
    393,469.10x = 589,328.85 × 304,433.90
  4. Step 4: Simplify right side
    393,469.10x = 179,411,680,188.02
  5. Step 5: Solve for x
    x = 179,411,680,188.02/393,469.10
  6. Step 6: Final answer
    x = 455,974.00

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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.