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Finding the Fourth Proportional to 581.76, 866.70 and 544.50

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Solution

The fourth proportional to 581.76, 866.70 and 544.50 is: 811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.76 : 866.70 = 544.50 : x
  2. Step 2: Convert to fraction form
    581.76/866.70 = 544.50/x
  3. Step 3: Cross multiply
    581.76x = 866.70 × 544.50
  4. Step 4: Simplify right side
    581.76x = 471,918.15
  5. Step 5: Solve for x
    x = 471,918.15/581.76
  6. Step 6: Final answer
    x = 811.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.