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Finding the Fourth Proportional to 680.30, 937.47 and 483.26

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Solution

The fourth proportional to 680.30, 937.47 and 483.26 is: 665.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    680.30 : 937.47 = 483.26 : x
  2. Step 2: Convert to fraction form
    680.30/937.47 = 483.26/x
  3. Step 3: Cross multiply
    680.30x = 937.47 × 483.26
  4. Step 4: Simplify right side
    680.30x = 453,041.75
  5. Step 5: Solve for x
    x = 453,041.75/680.30
  6. Step 6: Final answer
    x = 665.94

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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.