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Finding the Fourth Proportional to 704.81, 972.75 and 410.25

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Solution

The fourth proportional to 704.81, 972.75 and 410.25 is: 566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.81 : 972.75 = 410.25 : x
  2. Step 2: Convert to fraction form
    704.81/972.75 = 410.25/x
  3. Step 3: Cross multiply
    704.81x = 972.75 × 410.25
  4. Step 4: Simplify right side
    704.81x = 399,070.40
  5. Step 5: Solve for x
    x = 399,070.40/704.81
  6. Step 6: Final answer
    x = 566.21

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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.