Home / 1,228,243.92-1,694,925.72-684,351.60

Finding the Fourth Proportional to 1,228,243.92, 1,694,925.72 and 684,351.60

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Solution

The fourth proportional to 1,228,243.92, 1,694,925.72 and 684,351.60 is: 944,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,243.92 : 1,694,925.72 = 684,351.60 : x
  2. Step 2: Convert to fraction form
    1,228,243.92/1,694,925.72 = 684,351.60/x
  3. Step 3: Cross multiply
    1,228,243.92x = 1,694,925.72 × 684,351.60
  4. Step 4: Simplify right side
    1,228,243.92x = 1,159,925,128,363.15
  5. Step 5: Solve for x
    x = 1,159,925,128,363.15/1,228,243.92
  6. Step 6: Final answer
    x = 944,376.85

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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.