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Finding the Fourth Proportional to 478,825, 660,780.48 and 263,960.32

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Solution

The fourth proportional to 478,825, 660,780.48 and 263,960.32 is: 364,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,825 : 660,780.48 = 263,960.32 : x
  2. Step 2: Convert to fraction form
    478,825/660,780.48 = 263,960.32/x
  3. Step 3: Cross multiply
    478,825x = 660,780.48 × 263,960.32
  4. Step 4: Simplify right side
    478,825x = 174,419,826,950.55
  5. Step 5: Solve for x
    x = 174,419,826,950.55/478,825
  6. Step 6: Final answer
    x = 364,266.33

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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.