Home / 1,640,863.72-2,264,505.60-915,852.88

Finding the Fourth Proportional to 1,640,863.72, 2,264,505.60 and 915,852.88

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Solution

The fourth proportional to 1,640,863.72, 2,264,505.60 and 915,852.88 is: 1,263,940.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,863.72 : 2,264,505.60 = 915,852.88 : x
  2. Step 2: Convert to fraction form
    1,640,863.72/2,264,505.60 = 915,852.88/x
  3. Step 3: Cross multiply
    1,640,863.72x = 2,264,505.60 × 915,852.88
  4. Step 4: Simplify right side
    1,640,863.72x = 2,073,953,975,536.13
  5. Step 5: Solve for x
    x = 2,073,953,975,536.13/1,640,863.72
  6. Step 6: Final answer
    x = 1,263,940.42

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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.