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Finding the Fourth Proportional to 914.12, 1,261.05 and 599.25

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Solution

The fourth proportional to 914.12, 1,261.05 and 599.25 is: 826.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.12 : 1,261.05 = 599.25 : x
  2. Step 2: Convert to fraction form
    914.12/1,261.05 = 599.25/x
  3. Step 3: Cross multiply
    914.12x = 1,261.05 × 599.25
  4. Step 4: Simplify right side
    914.12x = 755,684.21
  5. Step 5: Solve for x
    x = 755,684.21/914.12
  6. Step 6: Final answer
    x = 826.68

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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.