Home / 1,377,976.98-2,066,831.82-418,440.90

Finding the Fourth Proportional to 1,377,976.98, 2,066,831.82 and 418,440.90

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Solution

The fourth proportional to 1,377,976.98, 2,066,831.82 and 418,440.90 is: 627,620.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,976.98 : 2,066,831.82 = 418,440.90 : x
  2. Step 2: Convert to fraction form
    1,377,976.98/2,066,831.82 = 418,440.90/x
  3. Step 3: Cross multiply
    1,377,976.98x = 2,066,831.82 × 418,440.90
  4. Step 4: Simplify right side
    1,377,976.98x = 864,846,966,909.44
  5. Step 5: Solve for x
    x = 864,846,966,909.44/1,377,976.98
  6. Step 6: Final answer
    x = 627,620.77

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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.