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Finding the Fourth Proportional to 899.66, 1,241.52 and 526.66

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Solution

The fourth proportional to 899.66, 1,241.52 and 526.66 is: 726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.66 : 1,241.52 = 526.66 : x
  2. Step 2: Convert to fraction form
    899.66/1,241.52 = 526.66/x
  3. Step 3: Cross multiply
    899.66x = 1,241.52 × 526.66
  4. Step 4: Simplify right side
    899.66x = 653,853.84
  5. Step 5: Solve for x
    x = 653,853.84/899.66
  6. Step 6: Final answer
    x = 726.78

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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.