Home / 758,872.38-1,138,896.09-285,987.90

Finding the Fourth Proportional to 758,872.38, 1,138,896.09 and 285,987.90

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Solution

The fourth proportional to 758,872.38, 1,138,896.09 and 285,987.90 is: 429,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,872.38 : 1,138,896.09 = 285,987.90 : x
  2. Step 2: Convert to fraction form
    758,872.38/1,138,896.09 = 285,987.90/x
  3. Step 3: Cross multiply
    758,872.38x = 1,138,896.09 × 285,987.90
  4. Step 4: Simplify right side
    758,872.38x = 325,710,501,097.31
  5. Step 5: Solve for x
    x = 325,710,501,097.31/758,872.38
  6. Step 6: Final answer
    x = 429,203.26

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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.