Home / 1,397,007.72-1,928,102.58-824,188.68

Finding the Fourth Proportional to 1,397,007.72, 1,928,102.58 and 824,188.68

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Solution

The fourth proportional to 1,397,007.72, 1,928,102.58 and 824,188.68 is: 1,137,517.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,007.72 : 1,928,102.58 = 824,188.68 : x
  2. Step 2: Convert to fraction form
    1,397,007.72/1,928,102.58 = 824,188.68/x
  3. Step 3: Cross multiply
    1,397,007.72x = 1,928,102.58 × 824,188.68
  4. Step 4: Simplify right side
    1,397,007.72x = 1,589,120,320,314.79
  5. Step 5: Solve for x
    x = 1,589,120,320,314.79/1,397,007.72
  6. Step 6: Final answer
    x = 1,137,517.21

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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.