Home / 1,313,705.15-1,812,957.84-762,378.17

Finding the Fourth Proportional to 1,313,705.15, 1,812,957.84 and 762,378.17

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Solution

The fourth proportional to 1,313,705.15, 1,812,957.84 and 762,378.17 is: 1,052,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,705.15 : 1,812,957.84 = 762,378.17 : x
  2. Step 2: Convert to fraction form
    1,313,705.15/1,812,957.84 = 762,378.17/x
  3. Step 3: Cross multiply
    1,313,705.15x = 1,812,957.84 × 762,378.17
  4. Step 4: Simplify right side
    1,313,705.15x = 1,382,159,471,281.56
  5. Step 5: Solve for x
    x = 1,382,159,471,281.56/1,313,705.15
  6. Step 6: Final answer
    x = 1,052,107.83

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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.