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Finding the Fourth Proportional to 478,204.80, 659,922.72 and 263,344.32

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Solution

The fourth proportional to 478,204.80, 659,922.72 and 263,344.32 is: 363,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,204.80 : 659,922.72 = 263,344.32 : x
  2. Step 2: Convert to fraction form
    478,204.80/659,922.72 = 263,344.32/x
  3. Step 3: Cross multiply
    478,204.80x = 659,922.72 × 263,344.32
  4. Step 4: Simplify right side
    478,204.80x = 173,786,899,950.95
  5. Step 5: Solve for x
    x = 173,786,899,950.95/478,204.80
  6. Step 6: Final answer
    x = 363,415.21

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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.