Home / 1,639,721.81-2,262,819.20-914,616.50

Finding the Fourth Proportional to 1,639,721.81, 2,262,819.20 and 914,616.50

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Solution

The fourth proportional to 1,639,721.81, 2,262,819.20 and 914,616.50 is: 1,262,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,721.81 : 2,262,819.20 = 914,616.50 : x
  2. Step 2: Convert to fraction form
    1,639,721.81/2,262,819.20 = 914,616.50/x
  3. Step 3: Cross multiply
    1,639,721.81x = 2,262,819.20 × 914,616.50
  4. Step 4: Simplify right side
    1,639,721.81x = 2,069,611,760,949.62
  5. Step 5: Solve for x
    x = 2,069,611,760,949.62/1,639,721.81
  6. Step 6: Final answer
    x = 1,262,172.49

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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.