Home / 418,933.59-628,498.79-119,418.47

Finding the Fourth Proportional to 418,933.59, 628,498.79 and 119,418.47

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Solution

The fourth proportional to 418,933.59, 628,498.79 and 119,418.47 is: 179,155.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,933.59 : 628,498.79 = 119,418.47 : x
  2. Step 2: Convert to fraction form
    418,933.59/628,498.79 = 119,418.47/x
  3. Step 3: Cross multiply
    418,933.59x = 628,498.79 × 119,418.47
  4. Step 4: Simplify right side
    418,933.59x = 75,054,360,159.07
  5. Step 5: Solve for x
    x = 75,054,360,159.07/418,933.59
  6. Step 6: Final answer
    x = 179,155.75

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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.