Home / 638,231.35-880,747.86-347,845.54

Finding the Fourth Proportional to 638,231.35, 880,747.86 and 347,845.54

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Solution

The fourth proportional to 638,231.35, 880,747.86 and 347,845.54 is: 480,020.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,231.35 : 880,747.86 = 347,845.54 : x
  2. Step 2: Convert to fraction form
    638,231.35/880,747.86 = 347,845.54/x
  3. Step 3: Cross multiply
    638,231.35x = 880,747.86 × 347,845.54
  4. Step 4: Simplify right side
    638,231.35x = 306,364,214,965.54
  5. Step 5: Solve for x
    x = 306,364,214,965.54/638,231.35
  6. Step 6: Final answer
    x = 480,020.63

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1.5x scale

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.