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Finding the Fourth Proportional to 478,246.72, 659,954.86 and 263,344.84

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Solution

The fourth proportional to 478,246.72, 659,954.86 and 263,344.84 is: 363,401.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,246.72 : 659,954.86 = 263,344.84 : x
  2. Step 2: Convert to fraction form
    478,246.72/659,954.86 = 263,344.84/x
  3. Step 3: Cross multiply
    478,246.72x = 659,954.86 × 263,344.84
  4. Step 4: Simplify right side
    478,246.72x = 173,795,707,013.92
  5. Step 5: Solve for x
    x = 173,795,707,013.92/478,246.72
  6. Step 6: Final answer
    x = 363,401.78

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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.