Home / 1,396,128.20-2,094,197.77-922,708.31

Finding the Fourth Proportional to 1,396,128.20, 2,094,197.77 and 922,708.31

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Solution

The fourth proportional to 1,396,128.20, 2,094,197.77 and 922,708.31 is: 1,384,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,128.20 : 2,094,197.77 = 922,708.31 : x
  2. Step 2: Convert to fraction form
    1,396,128.20/2,094,197.77 = 922,708.31/x
  3. Step 3: Cross multiply
    1,396,128.20x = 2,094,197.77 × 922,708.31
  4. Step 4: Simplify right side
    1,396,128.20x = 1,932,333,675,313.43
  5. Step 5: Solve for x
    x = 1,932,333,675,313.43/1,396,128.20
  6. Step 6: Final answer
    x = 1,384,066.08

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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.