Home / 418,743.58-627,877.42-285,784.91

Finding the Fourth Proportional to 418,743.58, 627,877.42 and 285,784.91

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Solution

The fourth proportional to 418,743.58, 627,877.42 and 285,784.91 is: 428,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,743.58 : 627,877.42 = 285,784.91 : x
  2. Step 2: Convert to fraction form
    418,743.58/627,877.42 = 285,784.91/x
  3. Step 3: Cross multiply
    418,743.58x = 627,877.42 × 285,784.91
  4. Step 4: Simplify right side
    418,743.58x = 179,437,891,965.73
  5. Step 5: Solve for x
    x = 179,437,891,965.73/418,743.58
  6. Step 6: Final answer
    x = 428,514.97

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1.5x scale

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.