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Finding the Fourth Proportional to 709.54, 1,061.66 and 526.62

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Solution

The fourth proportional to 709.54, 1,061.66 and 526.62 is: 787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    709.54 : 1,061.66 = 526.62 : x
  2. Step 2: Convert to fraction form
    709.54/1,061.66 = 526.62/x
  3. Step 3: Cross multiply
    709.54x = 1,061.66 × 526.62
  4. Step 4: Simplify right side
    709.54x = 559,091.39
  5. Step 5: Solve for x
    x = 559,091.39/709.54
  6. Step 6: Final answer
    x = 787.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.