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Finding the Fourth Proportional to 1,064.11, 1,467.88 and 670.45

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Solution

The fourth proportional to 1,064.11, 1,467.88 and 670.45 is: 924.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.11 : 1,467.88 = 670.45 : x
  2. Step 2: Convert to fraction form
    1,064.11/1,467.88 = 670.45/x
  3. Step 3: Cross multiply
    1,064.11x = 1,467.88 × 670.45
  4. Step 4: Simplify right side
    1,064.11x = 984,140.15
  5. Step 5: Solve for x
    x = 984,140.15/1,064.11
  6. Step 6: Final answer
    x = 924.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.