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Finding the Fourth Proportional to 899.11, 1,240.72 and 526.13

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Solution

The fourth proportional to 899.11, 1,240.72 and 526.13 is: 726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.11 : 1,240.72 = 526.13 : x
  2. Step 2: Convert to fraction form
    899.11/1,240.72 = 526.13/x
  3. Step 3: Cross multiply
    899.11x = 1,240.72 × 526.13
  4. Step 4: Simplify right side
    899.11x = 652,780.01
  5. Step 5: Solve for x
    x = 652,780.01/899.11
  6. Step 6: Final answer
    x = 726.03

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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.