Home / 778,427.64-1,167,799.05-329,147.73

Finding the Fourth Proportional to 778,427.64, 1,167,799.05 and 329,147.73

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Solution

The fourth proportional to 778,427.64, 1,167,799.05 and 329,147.73 is: 493,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,427.64 : 1,167,799.05 = 329,147.73 : x
  2. Step 2: Convert to fraction form
    778,427.64/1,167,799.05 = 329,147.73/x
  3. Step 3: Cross multiply
    778,427.64x = 1,167,799.05 × 329,147.73
  4. Step 4: Simplify right side
    778,427.64x = 384,378,406,403.66
  5. Step 5: Solve for x
    x = 384,378,406,403.66/778,427.64
  6. Step 6: Final answer
    x = 493,788.23

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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.