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Finding the Fourth Proportional to 704.79, 972.37 and 456.17

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Solution

The fourth proportional to 704.79, 972.37 and 456.17 is: 629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.79 : 972.37 = 456.17 : x
  2. Step 2: Convert to fraction form
    704.79/972.37 = 456.17/x
  3. Step 3: Cross multiply
    704.79x = 972.37 × 456.17
  4. Step 4: Simplify right side
    704.79x = 443,563.74
  5. Step 5: Solve for x
    x = 443,563.74/704.79
  6. Step 6: Final answer
    x = 629.36

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Double scale
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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.