Home / 490,741.34-736,119.30-323,333.78

Finding the Fourth Proportional to 490,741.34, 736,119.30 and 323,333.78

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Solution

The fourth proportional to 490,741.34, 736,119.30 and 323,333.78 is: 485,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,741.34 : 736,119.30 = 323,333.78 : x
  2. Step 2: Convert to fraction form
    490,741.34/736,119.30 = 323,333.78/x
  3. Step 3: Cross multiply
    490,741.34x = 736,119.30 × 323,333.78
  4. Step 4: Simplify right side
    490,741.34x = 238,012,235,799.95
  5. Step 5: Solve for x
    x = 238,012,235,799.95/490,741.34
  6. Step 6: Final answer
    x = 485,005.47

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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.