Home / 1,187,831.46-1,640,560.62-805,193.94

Finding the Fourth Proportional to 1,187,831.46, 1,640,560.62 and 805,193.94

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Solution

The fourth proportional to 1,187,831.46, 1,640,560.62 and 805,193.94 is: 1,112,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,831.46 : 1,640,560.62 = 805,193.94 : x
  2. Step 2: Convert to fraction form
    1,187,831.46/1,640,560.62 = 805,193.94/x
  3. Step 3: Cross multiply
    1,187,831.46x = 1,640,560.62 × 805,193.94
  4. Step 4: Simplify right side
    1,187,831.46x = 1,320,969,472,851.80
  5. Step 5: Solve for x
    x = 1,320,969,472,851.80/1,187,831.46
  6. Step 6: Final answer
    x = 1,112,084.93

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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.