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Finding the Fourth Proportional to 599.60, 826.61 and 412.79

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Solution

The fourth proportional to 599.60, 826.61 and 412.79 is: 569.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.60 : 826.61 = 412.79 : x
  2. Step 2: Convert to fraction form
    599.60/826.61 = 412.79/x
  3. Step 3: Cross multiply
    599.60x = 826.61 × 412.79
  4. Step 4: Simplify right side
    599.60x = 341,210.14
  5. Step 5: Solve for x
    x = 341,210.14/599.60
  6. Step 6: Final answer
    x = 569.07

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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.