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Finding the Fourth Proportional to 561.37, 775.05 and 526.52

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Solution

The fourth proportional to 561.37, 775.05 and 526.52 is: 726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.37 : 775.05 = 526.52 : x
  2. Step 2: Convert to fraction form
    561.37/775.05 = 526.52/x
  3. Step 3: Cross multiply
    561.37x = 775.05 × 526.52
  4. Step 4: Simplify right side
    561.37x = 408,079.33
  5. Step 5: Solve for x
    x = 408,079.33/561.37
  6. Step 6: Final answer
    x = 726.93

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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.