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Finding the Fourth Proportional to 635.49, 875.03 and 556.37

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Solution

The fourth proportional to 635.49, 875.03 and 556.37 is: 766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.49 : 875.03 = 556.37 : x
  2. Step 2: Convert to fraction form
    635.49/875.03 = 556.37/x
  3. Step 3: Cross multiply
    635.49x = 875.03 × 556.37
  4. Step 4: Simplify right side
    635.49x = 486,834.68
  5. Step 5: Solve for x
    x = 486,834.68/635.49
  6. Step 6: Final answer
    x = 766.08

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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.