Home / 1,912,853.96-2,639,836.19-1,085,985.47

Finding the Fourth Proportional to 1,912,853.96, 2,639,836.19 and 1,085,985.47

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Solution

The fourth proportional to 1,912,853.96, 2,639,836.19 and 1,085,985.47 is: 1,498,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,853.96 : 2,639,836.19 = 1,085,985.47 : x
  2. Step 2: Convert to fraction form
    1,912,853.96/2,639,836.19 = 1,085,985.47/x
  3. Step 3: Cross multiply
    1,912,853.96x = 2,639,836.19 × 1,085,985.47
  4. Step 4: Simplify right side
    1,912,853.96x = 2,866,823,754,834.71
  5. Step 5: Solve for x
    x = 2,866,823,754,834.71/1,912,853.96
  6. Step 6: Final answer
    x = 1,498,715.44

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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.