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Finding the Fourth Proportional to 703.49, 1,053.41 and 625.12

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Solution

The fourth proportional to 703.49, 1,053.41 and 625.12 is: 936.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.49 : 1,053.41 = 625.12 : x
  2. Step 2: Convert to fraction form
    703.49/1,053.41 = 625.12/x
  3. Step 3: Cross multiply
    703.49x = 1,053.41 × 625.12
  4. Step 4: Simplify right side
    703.49x = 658,501.90
  5. Step 5: Solve for x
    x = 658,501.90/703.49
  6. Step 6: Final answer
    x = 936.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.