Home / 1,843,716.20-2,765,963.10-778,209.80

Finding the Fourth Proportional to 1,843,716.20, 2,765,963.10 and 778,209.80

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Solution

The fourth proportional to 1,843,716.20, 2,765,963.10 and 778,209.80 is: 1,167,478.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843,716.20 : 2,765,963.10 = 778,209.80 : x
  2. Step 2: Convert to fraction form
    1,843,716.20/2,765,963.10 = 778,209.80/x
  3. Step 3: Cross multiply
    1,843,716.20x = 2,765,963.10 × 778,209.80
  4. Step 4: Simplify right side
    1,843,716.20x = 2,152,499,590,858.38
  5. Step 5: Solve for x
    x = 2,152,499,590,858.38/1,843,716.20
  6. Step 6: Final answer
    x = 1,167,478.81

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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.