Home / 1,398,206.32-2,087,101.98-1,199,801.68

Finding the Fourth Proportional to 1,398,206.32, 2,087,101.98 and 1,199,801.68

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Solution

The fourth proportional to 1,398,206.32, 2,087,101.98 and 1,199,801.68 is: 1,790,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,206.32 : 2,087,101.98 = 1,199,801.68 : x
  2. Step 2: Convert to fraction form
    1,398,206.32/2,087,101.98 = 1,199,801.68/x
  3. Step 3: Cross multiply
    1,398,206.32x = 2,087,101.98 × 1,199,801.68
  4. Step 4: Simplify right side
    1,398,206.32x = 2,504,108,461,935.33
  5. Step 5: Solve for x
    x = 2,504,108,461,935.33/1,398,206.32
  6. Step 6: Final answer
    x = 1,790,943.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.