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Finding the Fourth Proportional to 710.80, 981.39 and 544.72

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Solution

The fourth proportional to 710.80, 981.39 and 544.72 is: 752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.80 : 981.39 = 544.72 : x
  2. Step 2: Convert to fraction form
    710.80/981.39 = 544.72/x
  3. Step 3: Cross multiply
    710.80x = 981.39 × 544.72
  4. Step 4: Simplify right side
    710.80x = 534,582.76
  5. Step 5: Solve for x
    x = 534,582.76/710.80
  6. Step 6: Final answer
    x = 752.09

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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.