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Finding the Fourth Proportional to 719.01, 991.85 and 544.05

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Solution

The fourth proportional to 719.01, 991.85 and 544.05 is: 750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.01 : 991.85 = 544.05 : x
  2. Step 2: Convert to fraction form
    719.01/991.85 = 544.05/x
  3. Step 3: Cross multiply
    719.01x = 991.85 × 544.05
  4. Step 4: Simplify right side
    719.01x = 539,612.39
  5. Step 5: Solve for x
    x = 539,612.39/719.01
  6. Step 6: Final answer
    x = 750.50

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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.