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Finding the Fourth Proportional to 477,279.70, 658,633.35 and 259,481.50

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Solution

The fourth proportional to 477,279.70, 658,633.35 and 259,481.50 is: 358,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,279.70 : 658,633.35 = 259,481.50 : x
  2. Step 2: Convert to fraction form
    477,279.70/658,633.35 = 259,481.50/x
  3. Step 3: Cross multiply
    477,279.70x = 658,633.35 × 259,481.50
  4. Step 4: Simplify right side
    477,279.70x = 170,903,169,608.03
  5. Step 5: Solve for x
    x = 170,903,169,608.03/477,279.70
  6. Step 6: Final answer
    x = 358,077.60

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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.