Home / 1,915,852.65-2,643,882.17-1,056,394.05

Finding the Fourth Proportional to 1,915,852.65, 2,643,882.17 and 1,056,394.05

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Solution

The fourth proportional to 1,915,852.65, 2,643,882.17 and 1,056,394.05 is: 1,457,826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,852.65 : 2,643,882.17 = 1,056,394.05 : x
  2. Step 2: Convert to fraction form
    1,915,852.65/2,643,882.17 = 1,056,394.05/x
  3. Step 3: Cross multiply
    1,915,852.65x = 2,643,882.17 × 1,056,394.05
  4. Step 4: Simplify right side
    1,915,852.65x = 2,792,981,388,007.12
  5. Step 5: Solve for x
    x = 2,792,981,388,007.12/1,915,852.65
  6. Step 6: Final answer
    x = 1,457,826.83

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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.