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Finding the Fourth Proportional to 607.75, 839.07 and 467.61

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Solution

The fourth proportional to 607.75, 839.07 and 467.61 is: 645.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.75 : 839.07 = 467.61 : x
  2. Step 2: Convert to fraction form
    607.75/839.07 = 467.61/x
  3. Step 3: Cross multiply
    607.75x = 839.07 × 467.61
  4. Step 4: Simplify right side
    607.75x = 392,357.52
  5. Step 5: Solve for x
    x = 392,357.52/607.75
  6. Step 6: Final answer
    x = 645.59

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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.