Home / 1,619,538.80-2,429,999.40-777,657.20

Finding the Fourth Proportional to 1,619,538.80, 2,429,999.40 and 777,657.20

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Solution

The fourth proportional to 1,619,538.80, 2,429,999.40 and 777,657.20 is: 1,166,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,538.80 : 2,429,999.40 = 777,657.20 : x
  2. Step 2: Convert to fraction form
    1,619,538.80/2,429,999.40 = 777,657.20/x
  3. Step 3: Cross multiply
    1,619,538.80x = 2,429,999.40 × 777,657.20
  4. Step 4: Simplify right side
    1,619,538.80x = 1,889,706,529,405.68
  5. Step 5: Solve for x
    x = 1,889,706,529,405.68/1,619,538.80
  6. Step 6: Final answer
    x = 1,166,817.69

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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.