Home / 2,639,643-3,642,707.34-1,432,419

Finding the Fourth Proportional to 2,639,643, 3,642,707.34 and 1,432,419

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Solution

The fourth proportional to 2,639,643, 3,642,707.34 and 1,432,419 is: 1,976,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,643 : 3,642,707.34 = 1,432,419 : x
  2. Step 2: Convert to fraction form
    2,639,643/3,642,707.34 = 1,432,419/x
  3. Step 3: Cross multiply
    2,639,643x = 3,642,707.34 × 1,432,419
  4. Step 4: Simplify right side
    2,639,643x = 5,217,883,205,255.46
  5. Step 5: Solve for x
    x = 5,217,883,205,255.46/2,639,643
  6. Step 6: Final answer
    x = 1,976,738.22

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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.