Home / 1,270,908.78-1,753,415.52-812,291.82

Finding the Fourth Proportional to 1,270,908.78, 1,753,415.52 and 812,291.82

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Solution

The fourth proportional to 1,270,908.78, 1,753,415.52 and 812,291.82 is: 1,120,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,908.78 : 1,753,415.52 = 812,291.82 : x
  2. Step 2: Convert to fraction form
    1,270,908.78/1,753,415.52 = 812,291.82/x
  3. Step 3: Cross multiply
    1,270,908.78x = 1,753,415.52 × 812,291.82
  4. Step 4: Simplify right side
    1,270,908.78x = 1,424,285,083,957.05
  5. Step 5: Solve for x
    x = 1,424,285,083,957.05/1,270,908.78
  6. Step 6: Final answer
    x = 1,120,682.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.