Home / 1,618,651.60-2,428,657.80-869,822.80

Finding the Fourth Proportional to 1,618,651.60, 2,428,657.80 and 869,822.80

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Solution

The fourth proportional to 1,618,651.60, 2,428,657.80 and 869,822.80 is: 1,305,099.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,651.60 : 2,428,657.80 = 869,822.80 : x
  2. Step 2: Convert to fraction form
    1,618,651.60/2,428,657.80 = 869,822.80/x
  3. Step 3: Cross multiply
    1,618,651.60x = 2,428,657.80 × 869,822.80
  4. Step 4: Simplify right side
    1,618,651.60x = 2,112,501,927,837.84
  5. Step 5: Solve for x
    x = 2,112,501,927,837.84/1,618,651.60
  6. Step 6: Final answer
    x = 1,305,099.83

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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.