Home / 1,618,705.60-2,428,738.80-869,876.80

Finding the Fourth Proportional to 1,618,705.60, 2,428,738.80 and 869,876.80

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Solution

The fourth proportional to 1,618,705.60, 2,428,738.80 and 869,876.80 is: 1,305,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,705.60 : 2,428,738.80 = 869,876.80 : x
  2. Step 2: Convert to fraction form
    1,618,705.60/2,428,738.80 = 869,876.80/x
  3. Step 3: Cross multiply
    1,618,705.60x = 2,428,738.80 × 869,876.80
  4. Step 4: Simplify right side
    1,618,705.60x = 2,112,703,535,379.84
  5. Step 5: Solve for x
    x = 2,112,703,535,379.84/1,618,705.60
  6. Step 6: Final answer
    x = 1,305,180.84

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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.