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Finding the Fourth Proportional to 899.43, 1,241.19 and 526.47

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Solution

The fourth proportional to 899.43, 1,241.19 and 526.47 is: 726.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.43 : 1,241.19 = 526.47 : x
  2. Step 2: Convert to fraction form
    899.43/1,241.19 = 526.47/x
  3. Step 3: Cross multiply
    899.43x = 1,241.19 × 526.47
  4. Step 4: Simplify right side
    899.43x = 653,449.30
  5. Step 5: Solve for x
    x = 653,449.30/899.43
  6. Step 6: Final answer
    x = 726.51

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Double scale
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1.5x scale

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.