Home / 1,381,438.30-1,906,356.06-769,590.22

Finding the Fourth Proportional to 1,381,438.30, 1,906,356.06 and 769,590.22

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Solution

The fourth proportional to 1,381,438.30, 1,906,356.06 and 769,590.22 is: 1,062,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,438.30 : 1,906,356.06 = 769,590.22 : x
  2. Step 2: Convert to fraction form
    1,381,438.30/1,906,356.06 = 769,590.22/x
  3. Step 3: Cross multiply
    1,381,438.30x = 1,906,356.06 × 769,590.22
  4. Step 4: Simplify right side
    1,381,438.30x = 1,467,112,979,613.73
  5. Step 5: Solve for x
    x = 1,467,112,979,613.73/1,381,438.30
  6. Step 6: Final answer
    x = 1,062,018.46

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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.