Home / 1,145,787.92-1,581,232.20-783,970.64

Finding the Fourth Proportional to 1,145,787.92, 1,581,232.20 and 783,970.64

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Solution

The fourth proportional to 1,145,787.92, 1,581,232.20 and 783,970.64 is: 1,081,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,787.92 : 1,581,232.20 = 783,970.64 : x
  2. Step 2: Convert to fraction form
    1,145,787.92/1,581,232.20 = 783,970.64/x
  3. Step 3: Cross multiply
    1,145,787.92x = 1,581,232.20 × 783,970.64
  4. Step 4: Simplify right side
    1,145,787.92x = 1,239,639,619,822.61
  5. Step 5: Solve for x
    x = 1,239,639,619,822.61/1,145,787.92
  6. Step 6: Final answer
    x = 1,081,910.18

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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.