Home / 1,915,216.20-2,872,824.30-1,678,825.80

Finding the Fourth Proportional to 1,915,216.20, 2,872,824.30 and 1,678,825.80

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Solution

The fourth proportional to 1,915,216.20, 2,872,824.30 and 1,678,825.80 is: 2,518,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,216.20 : 2,872,824.30 = 1,678,825.80 : x
  2. Step 2: Convert to fraction form
    1,915,216.20/2,872,824.30 = 1,678,825.80/x
  3. Step 3: Cross multiply
    1,915,216.20x = 2,872,824.30 × 1,678,825.80
  4. Step 4: Simplify right side
    1,915,216.20x = 4,822,971,553,706.94
  5. Step 5: Solve for x
    x = 4,822,971,553,706.94/1,915,216.20
  6. Step 6: Final answer
    x = 2,518,238.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.