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Finding the Fourth Proportional to 581.14, 875.70 and 480.68

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Solution

The fourth proportional to 581.14, 875.70 and 480.68 is: 724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.14 : 875.70 = 480.68 : x
  2. Step 2: Convert to fraction form
    581.14/875.70 = 480.68/x
  3. Step 3: Cross multiply
    581.14x = 875.70 × 480.68
  4. Step 4: Simplify right side
    581.14x = 420,931.48
  5. Step 5: Solve for x
    x = 420,931.48/581.14
  6. Step 6: Final answer
    x = 724.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.