Home / 1,616,728.46-2,231,054.21-891,643.19

Finding the Fourth Proportional to 1,616,728.46, 2,231,054.21 and 891,643.19

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Solution

The fourth proportional to 1,616,728.46, 2,231,054.21 and 891,643.19 is: 1,230,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616,728.46 : 2,231,054.21 = 891,643.19 : x
  2. Step 2: Convert to fraction form
    1,616,728.46/2,231,054.21 = 891,643.19/x
  3. Step 3: Cross multiply
    1,616,728.46x = 2,231,054.21 × 891,643.19
  4. Step 4: Simplify right side
    1,616,728.46x = 1,989,304,283,941.17
  5. Step 5: Solve for x
    x = 1,989,304,283,941.17/1,616,728.46
  6. Step 6: Final answer
    x = 1,230,450.47

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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.