Home / 1,450,431.54-1,999,981.94-991,620.81

Finding the Fourth Proportional to 1,450,431.54, 1,999,981.94 and 991,620.81

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Solution

The fourth proportional to 1,450,431.54, 1,999,981.94 and 991,620.81 is: 1,367,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450,431.54 : 1,999,981.94 = 991,620.81 : x
  2. Step 2: Convert to fraction form
    1,450,431.54/1,999,981.94 = 991,620.81/x
  3. Step 3: Cross multiply
    1,450,431.54x = 1,999,981.94 × 991,620.81
  4. Step 4: Simplify right side
    1,450,431.54x = 1,983,223,706,370.07
  5. Step 5: Solve for x
    x = 1,983,223,706,370.07/1,450,431.54
  6. Step 6: Final answer
    x = 1,367,333.55

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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.