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Finding the Fourth Proportional to 876.02, 1,209 and 544.41

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Solution

The fourth proportional to 876.02, 1,209 and 544.41 is: 751.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    876.02 : 1,209 = 544.41 : x
  2. Step 2: Convert to fraction form
    876.02/1,209 = 544.41/x
  3. Step 3: Cross multiply
    876.02x = 1,209 × 544.41
  4. Step 4: Simplify right side
    876.02x = 658,191.69
  5. Step 5: Solve for x
    x = 658,191.69/876.02
  6. Step 6: Final answer
    x = 751.34

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1.5x scale

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.