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Finding the Fourth Proportional to 384,941.80, 576,319.20 and 363,995.20

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Solution

The fourth proportional to 384,941.80, 576,319.20 and 363,995.20 is: 544,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,941.80 : 576,319.20 = 363,995.20 : x
  2. Step 2: Convert to fraction form
    384,941.80/576,319.20 = 363,995.20/x
  3. Step 3: Cross multiply
    384,941.80x = 576,319.20 × 363,995.20
  4. Step 4: Simplify right side
    384,941.80x = 209,777,422,467.84
  5. Step 5: Solve for x
    x = 209,777,422,467.84/384,941.80
  6. Step 6: Final answer
    x = 544,958.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.