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Finding the Fourth Proportional to 384,422.90, 576,634.35 and 366,926.90

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Solution

The fourth proportional to 384,422.90, 576,634.35 and 366,926.90 is: 550,390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,422.90 : 576,634.35 = 366,926.90 : x
  2. Step 2: Convert to fraction form
    384,422.90/576,634.35 = 366,926.90/x
  3. Step 3: Cross multiply
    384,422.90x = 576,634.35 × 366,926.90
  4. Step 4: Simplify right side
    384,422.90x = 211,582,654,479.02
  5. Step 5: Solve for x
    x = 211,582,654,479.02/384,422.90
  6. Step 6: Final answer
    x = 550,390.35

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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.