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Finding the Fourth Proportional to 887.51, 1,224.11 and 607.46

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Solution

The fourth proportional to 887.51, 1,224.11 and 607.46 is: 837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.51 : 1,224.11 = 607.46 : x
  2. Step 2: Convert to fraction form
    887.51/1,224.11 = 607.46/x
  3. Step 3: Cross multiply
    887.51x = 1,224.11 × 607.46
  4. Step 4: Simplify right side
    887.51x = 743,593.26
  5. Step 5: Solve for x
    x = 743,593.26/887.51
  6. Step 6: Final answer
    x = 837.84

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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.