Home / 1,640,254.70-2,263,552.91-915,102.57

Finding the Fourth Proportional to 1,640,254.70, 2,263,552.91 and 915,102.57

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Solution

The fourth proportional to 1,640,254.70, 2,263,552.91 and 915,102.57 is: 1,262,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,254.70 : 2,263,552.91 = 915,102.57 : x
  2. Step 2: Convert to fraction form
    1,640,254.70/2,263,552.91 = 915,102.57/x
  3. Step 3: Cross multiply
    1,640,254.70x = 2,263,552.91 × 915,102.57
  4. Step 4: Simplify right side
    1,640,254.70x = 2,071,383,080,696.47
  5. Step 5: Solve for x
    x = 2,071,383,080,696.47/1,640,254.70
  6. Step 6: Final answer
    x = 1,262,842.34

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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.