Home / 1,640,264.46-2,263,566.37-915,112.29

Finding the Fourth Proportional to 1,640,264.46, 2,263,566.37 and 915,112.29

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Solution

The fourth proportional to 1,640,264.46, 2,263,566.37 and 915,112.29 is: 1,262,855.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,264.46 : 2,263,566.37 = 915,112.29 : x
  2. Step 2: Convert to fraction form
    1,640,264.46/2,263,566.37 = 915,112.29/x
  3. Step 3: Cross multiply
    1,640,264.46x = 2,263,566.37 × 915,112.29
  4. Step 4: Simplify right side
    1,640,264.46x = 2,071,417,412,334.12
  5. Step 5: Solve for x
    x = 2,071,417,412,334.12/1,640,264.46
  6. Step 6: Final answer
    x = 1,262,855.75

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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.