Home / 1,991,210.13-2,747,864.88-1,085,792.13

Finding the Fourth Proportional to 1,991,210.13, 2,747,864.88 and 1,085,792.13

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Solution

The fourth proportional to 1,991,210.13, 2,747,864.88 and 1,085,792.13 is: 1,498,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,210.13 : 2,747,864.88 = 1,085,792.13 : x
  2. Step 2: Convert to fraction form
    1,991,210.13/2,747,864.88 = 1,085,792.13/x
  3. Step 3: Cross multiply
    1,991,210.13x = 2,747,864.88 × 1,085,792.13
  4. Step 4: Simplify right side
    1,991,210.13x = 2,983,610,061,007.39
  5. Step 5: Solve for x
    x = 2,983,610,061,007.39/1,991,210.13
  6. Step 6: Final answer
    x = 1,498,390.36

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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.