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Finding the Fourth Proportional to 1,000.04, 1,500.06 and 674.60

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Solution

The fourth proportional to 1,000.04, 1,500.06 and 674.60 is: 1,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000.04 : 1,500.06 = 674.60 : x
  2. Step 2: Convert to fraction form
    1,000.04/1,500.06 = 674.60/x
  3. Step 3: Cross multiply
    1,000.04x = 1,500.06 × 674.60
  4. Step 4: Simplify right side
    1,000.04x = 1,011,940.48
  5. Step 5: Solve for x
    x = 1,011,940.48/1,000.04
  6. Step 6: Final answer
    x = 1,011.90

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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.