Home / 319,824.22-480,308.12-306,966.66

Finding the Fourth Proportional to 319,824.22, 480,308.12 and 306,966.66

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Solution

The fourth proportional to 319,824.22, 480,308.12 and 306,966.66 is: 460,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,824.22 : 480,308.12 = 306,966.66 : x
  2. Step 2: Convert to fraction form
    319,824.22/480,308.12 = 306,966.66/x
  3. Step 3: Cross multiply
    319,824.22x = 480,308.12 × 306,966.66
  4. Step 4: Simplify right side
    319,824.22x = 147,438,579,367.28
  5. Step 5: Solve for x
    x = 147,438,579,367.28/319,824.22
  6. Step 6: Final answer
    x = 460,998.79

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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.