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Finding the Fourth Proportional to 944.04, 1,415.40 and 670.68

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Solution

The fourth proportional to 944.04, 1,415.40 and 670.68 is: 1,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.04 : 1,415.40 = 670.68 : x
  2. Step 2: Convert to fraction form
    944.04/1,415.40 = 670.68/x
  3. Step 3: Cross multiply
    944.04x = 1,415.40 × 670.68
  4. Step 4: Simplify right side
    944.04x = 949,280.47
  5. Step 5: Solve for x
    x = 949,280.47/944.04
  6. Step 6: Final answer
    x = 1,005.55

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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.