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Finding the Fourth Proportional to 400,989.80, 600,851.88 and 147,922.04

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Solution

The fourth proportional to 400,989.80, 600,851.88 and 147,922.04 is: 221,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,989.80 : 600,851.88 = 147,922.04 : x
  2. Step 2: Convert to fraction form
    400,989.80/600,851.88 = 147,922.04/x
  3. Step 3: Cross multiply
    400,989.80x = 600,851.88 × 147,922.04
  4. Step 4: Simplify right side
    400,989.80x = 88,879,235,827.44
  5. Step 5: Solve for x
    x = 88,879,235,827.44/400,989.80
  6. Step 6: Final answer
    x = 221,649.62

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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.