Home / 1,209,697.28-1,669,447.68-673,164.80

Finding the Fourth Proportional to 1,209,697.28, 1,669,447.68 and 673,164.80

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Solution

The fourth proportional to 1,209,697.28, 1,669,447.68 and 673,164.80 is: 929,003.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,697.28 : 1,669,447.68 = 673,164.80 : x
  2. Step 2: Convert to fraction form
    1,209,697.28/1,669,447.68 = 673,164.80/x
  3. Step 3: Cross multiply
    1,209,697.28x = 1,669,447.68 × 673,164.80
  4. Step 4: Simplify right side
    1,209,697.28x = 1,123,813,413,617.66
  5. Step 5: Solve for x
    x = 1,123,813,413,617.66/1,209,697.28
  6. Step 6: Final answer
    x = 929,003.84

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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.