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Finding the Fourth Proportional to 586.60, 875.57 and 550.12

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Solution

The fourth proportional to 586.60, 875.57 and 550.12 is: 821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.60 : 875.57 = 550.12 : x
  2. Step 2: Convert to fraction form
    586.60/875.57 = 550.12/x
  3. Step 3: Cross multiply
    586.60x = 875.57 × 550.12
  4. Step 4: Simplify right side
    586.60x = 481,668.57
  5. Step 5: Solve for x
    x = 481,668.57/586.60
  6. Step 6: Final answer
    x = 821.12

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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.