Home / 1,326,965.25-1,990,447.89-329,693.25

Finding the Fourth Proportional to 1,326,965.25, 1,990,447.89 and 329,693.25

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Solution

The fourth proportional to 1,326,965.25, 1,990,447.89 and 329,693.25 is: 494,539.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,965.25 : 1,990,447.89 = 329,693.25 : x
  2. Step 2: Convert to fraction form
    1,326,965.25/1,990,447.89 = 329,693.25/x
  3. Step 3: Cross multiply
    1,326,965.25x = 1,990,447.89 × 329,693.25
  4. Step 4: Simplify right side
    1,326,965.25x = 656,237,233,809.74
  5. Step 5: Solve for x
    x = 656,237,233,809.74/1,326,965.25
  6. Step 6: Final answer
    x = 494,539.88

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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.