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Finding the Fourth Proportional to 750.12, 1,125.12 and 444.06

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Solution

The fourth proportional to 750.12, 1,125.12 and 444.06 is: 666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.12 : 1,125.12 = 444.06 : x
  2. Step 2: Convert to fraction form
    750.12/1,125.12 = 444.06/x
  3. Step 3: Cross multiply
    750.12x = 1,125.12 × 444.06
  4. Step 4: Simplify right side
    750.12x = 499,620.79
  5. Step 5: Solve for x
    x = 499,620.79/750.12
  6. Step 6: Final answer
    x = 666.05

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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.