Home / 418,743.33-627,877.05-285,784.66

Finding the Fourth Proportional to 418,743.33, 627,877.05 and 285,784.66

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Solution

The fourth proportional to 418,743.33, 627,877.05 and 285,784.66 is: 428,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,743.33 : 627,877.05 = 285,784.66 : x
  2. Step 2: Convert to fraction form
    418,743.33/627,877.05 = 285,784.66/x
  3. Step 3: Cross multiply
    418,743.33x = 627,877.05 × 285,784.66
  4. Step 4: Simplify right side
    418,743.33x = 179,437,629,256.05
  5. Step 5: Solve for x
    x = 179,437,629,256.05/418,743.33
  6. Step 6: Final answer
    x = 428,514.60

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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.