Home / 1,400,864.12-2,101,918.26-680,884.28

Finding the Fourth Proportional to 1,400,864.12, 2,101,918.26 and 680,884.28

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Solution

The fourth proportional to 1,400,864.12, 2,101,918.26 and 680,884.28 is: 1,021,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,864.12 : 2,101,918.26 = 680,884.28 : x
  2. Step 2: Convert to fraction form
    1,400,864.12/2,101,918.26 = 680,884.28/x
  3. Step 3: Cross multiply
    1,400,864.12x = 2,101,918.26 × 680,884.28
  4. Step 4: Simplify right side
    1,400,864.12x = 1,431,163,101,078.95
  5. Step 5: Solve for x
    x = 1,431,163,101,078.95/1,400,864.12
  6. Step 6: Final answer
    x = 1,021,628.78

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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.