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Finding the Fourth Proportional to 383,634.80, 575,452.20 and 346,893.20

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Solution

The fourth proportional to 383,634.80, 575,452.20 and 346,893.20 is: 520,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,634.80 : 575,452.20 = 346,893.20 : x
  2. Step 2: Convert to fraction form
    383,634.80/575,452.20 = 346,893.20/x
  3. Step 3: Cross multiply
    383,634.80x = 575,452.20 × 346,893.20
  4. Step 4: Simplify right side
    383,634.80x = 199,620,455,105.04
  5. Step 5: Solve for x
    x = 199,620,455,105.04/383,634.80
  6. Step 6: Final answer
    x = 520,339.80

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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.