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Finding the Fourth Proportional to 721.82, 996.08 and 526.16

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Solution

The fourth proportional to 721.82, 996.08 and 526.16 is: 726.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    721.82 : 996.08 = 526.16 : x
  2. Step 2: Convert to fraction form
    721.82/996.08 = 526.16/x
  3. Step 3: Cross multiply
    721.82x = 996.08 × 526.16
  4. Step 4: Simplify right side
    721.82x = 524,097.45
  5. Step 5: Solve for x
    x = 524,097.45/721.82
  6. Step 6: Final answer
    x = 726.08

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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.