Home / 646,354.08-969,575.40-219,716.28

Finding the Fourth Proportional to 646,354.08, 969,575.40 and 219,716.28

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Solution

The fourth proportional to 646,354.08, 969,575.40 and 219,716.28 is: 329,589.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,354.08 : 969,575.40 = 219,716.28 : x
  2. Step 2: Convert to fraction form
    646,354.08/969,575.40 = 219,716.28/x
  3. Step 3: Cross multiply
    646,354.08x = 969,575.40 × 219,716.28
  4. Step 4: Simplify right side
    646,354.08x = 213,031,500,067.51
  5. Step 5: Solve for x
    x = 213,031,500,067.51/646,354.08
  6. Step 6: Final answer
    x = 329,589.47

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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.