Home / 871,643.12-1,202,839.60-484,456.64

Finding the Fourth Proportional to 871,643.12, 1,202,839.60 and 484,456.64

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Solution

The fourth proportional to 871,643.12, 1,202,839.60 and 484,456.64 is: 668,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,643.12 : 1,202,839.60 = 484,456.64 : x
  2. Step 2: Convert to fraction form
    871,643.12/1,202,839.60 = 484,456.64/x
  3. Step 3: Cross multiply
    871,643.12x = 1,202,839.60 × 484,456.64
  4. Step 4: Simplify right side
    871,643.12x = 582,723,631,074.94
  5. Step 5: Solve for x
    x = 582,723,631,074.94/871,643.12
  6. Step 6: Final answer
    x = 668,534.65

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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.