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Finding the Fourth Proportional to 702, 968.58 and 453.24

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Solution

The fourth proportional to 702, 968.58 and 453.24 is: 625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    702 : 968.58 = 453.24 : x
  2. Step 2: Convert to fraction form
    702/968.58 = 453.24/x
  3. Step 3: Cross multiply
    702x = 968.58 × 453.24
  4. Step 4: Simplify right side
    702x = 438,999.20
  5. Step 5: Solve for x
    x = 438,999.20/702
  6. Step 6: Final answer
    x = 625.35

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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.