Home / 1,079,171.80-1,618,757.70-869,219.80

Finding the Fourth Proportional to 1,079,171.80, 1,618,757.70 and 869,219.80

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Solution

The fourth proportional to 1,079,171.80, 1,618,757.70 and 869,219.80 is: 1,303,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,171.80 : 1,618,757.70 = 869,219.80 : x
  2. Step 2: Convert to fraction form
    1,079,171.80/1,618,757.70 = 869,219.80/x
  3. Step 3: Cross multiply
    1,079,171.80x = 1,618,757.70 × 869,219.80
  4. Step 4: Simplify right side
    1,079,171.80x = 1,407,056,244,242.46
  5. Step 5: Solve for x
    x = 1,407,056,244,242.46/1,079,171.80
  6. Step 6: Final answer
    x = 1,303,829.70

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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.