Home / 871,399.89-1,202,507.87-484,205.30

Finding the Fourth Proportional to 871,399.89, 1,202,507.87 and 484,205.30

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Solution

The fourth proportional to 871,399.89, 1,202,507.87 and 484,205.30 is: 668,189.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,399.89 : 1,202,507.87 = 484,205.30 : x
  2. Step 2: Convert to fraction form
    871,399.89/1,202,507.87 = 484,205.30/x
  3. Step 3: Cross multiply
    871,399.89x = 1,202,507.87 × 484,205.30
  4. Step 4: Simplify right side
    871,399.89x = 582,260,684,530.95
  5. Step 5: Solve for x
    x = 582,260,684,530.95/871,399.89
  6. Step 6: Final answer
    x = 668,189.99

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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.