Home / 1,398,453.63-2,097,786.21-387,563.91

Finding the Fourth Proportional to 1,398,453.63, 2,097,786.21 and 387,563.91

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Solution

The fourth proportional to 1,398,453.63, 2,097,786.21 and 387,563.91 is: 581,375.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,453.63 : 2,097,786.21 = 387,563.91 : x
  2. Step 2: Convert to fraction form
    1,398,453.63/2,097,786.21 = 387,563.91/x
  3. Step 3: Cross multiply
    1,398,453.63x = 2,097,786.21 × 387,563.91
  4. Step 4: Simplify right side
    1,398,453.63x = 813,026,225,891.68
  5. Step 5: Solve for x
    x = 813,026,225,891.68/1,398,453.63
  6. Step 6: Final answer
    x = 581,375.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.