Home / 384,308.20-576,462.30-356,314.60

Finding the Fourth Proportional to 384,308.20, 576,462.30 and 356,314.60

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Solution

The fourth proportional to 384,308.20, 576,462.30 and 356,314.60 is: 534,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,308.20 : 576,462.30 = 356,314.60 : x
  2. Step 2: Convert to fraction form
    384,308.20/576,462.30 = 356,314.60/x
  3. Step 3: Cross multiply
    384,308.20x = 576,462.30 × 356,314.60
  4. Step 4: Simplify right side
    384,308.20x = 205,401,933,839.58
  5. Step 5: Solve for x
    x = 205,401,933,839.58/384,308.20
  6. Step 6: Final answer
    x = 534,471.90

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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.