Home / 2,130,904.80-3,198,171.60-869,637.60

Finding the Fourth Proportional to 2,130,904.80, 3,198,171.60 and 869,637.60

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Solution

The fourth proportional to 2,130,904.80, 3,198,171.60 and 869,637.60 is: 1,305,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,904.80 : 3,198,171.60 = 869,637.60 : x
  2. Step 2: Convert to fraction form
    2,130,904.80/3,198,171.60 = 869,637.60/x
  3. Step 3: Cross multiply
    2,130,904.80x = 3,198,171.60 × 869,637.60
  4. Step 4: Simplify right side
    2,130,904.80x = 2,781,250,274,612.16
  5. Step 5: Solve for x
    x = 2,781,250,274,612.16/2,130,904.80
  6. Step 6: Final answer
    x = 1,305,196.87

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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.