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Finding the Fourth Proportional to 638,253.60, 880,778.32 and 347,867.67

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Solution

The fourth proportional to 638,253.60, 880,778.32 and 347,867.67 is: 480,051.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,253.60 : 880,778.32 = 347,867.67 : x
  2. Step 2: Convert to fraction form
    638,253.60/880,778.32 = 347,867.67/x
  3. Step 3: Cross multiply
    638,253.60x = 880,778.32 × 347,867.67
  4. Step 4: Simplify right side
    638,253.60x = 306,394,301,964.91
  5. Step 5: Solve for x
    x = 306,394,301,964.91/638,253.60
  6. Step 6: Final answer
    x = 480,051.04

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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.