Home / 1,397,995.94-1,929,883.92-1,053,971.12

Finding the Fourth Proportional to 1,397,995.94, 1,929,883.92 and 1,053,971.12

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Solution

The fourth proportional to 1,397,995.94, 1,929,883.92 and 1,053,971.12 is: 1,454,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,995.94 : 1,929,883.92 = 1,053,971.12 : x
  2. Step 2: Convert to fraction form
    1,397,995.94/1,929,883.92 = 1,053,971.12/x
  3. Step 3: Cross multiply
    1,397,995.94x = 1,929,883.92 × 1,053,971.12
  4. Step 4: Simplify right side
    1,397,995.94x = 2,034,041,916,632.39
  5. Step 5: Solve for x
    x = 2,034,041,916,632.39/1,397,995.94
  6. Step 6: Final answer
    x = 1,454,969.83

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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.