Home / 1,384,171.60-1,909,795.32-810,903.60

Finding the Fourth Proportional to 1,384,171.60, 1,909,795.32 and 810,903.60

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Solution

The fourth proportional to 1,384,171.60, 1,909,795.32 and 810,903.60 is: 1,118,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,171.60 : 1,909,795.32 = 810,903.60 : x
  2. Step 2: Convert to fraction form
    1,384,171.60/1,909,795.32 = 810,903.60/x
  3. Step 3: Cross multiply
    1,384,171.60x = 1,909,795.32 × 810,903.60
  4. Step 4: Simplify right side
    1,384,171.60x = 1,548,659,900,251.15
  5. Step 5: Solve for x
    x = 1,548,659,900,251.15/1,384,171.60
  6. Step 6: Final answer
    x = 1,118,835.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.