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Finding the Fourth Proportional to 586.73, 879.08 and 313.35

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Solution

The fourth proportional to 586.73, 879.08 and 313.35 is: 469.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.73 : 879.08 = 313.35 : x
  2. Step 2: Convert to fraction form
    586.73/879.08 = 313.35/x
  3. Step 3: Cross multiply
    586.73x = 879.08 × 313.35
  4. Step 4: Simplify right side
    586.73x = 275,458.15
  5. Step 5: Solve for x
    x = 275,458.15/586.73
  6. Step 6: Final answer
    x = 469.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.