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Finding the Fourth Proportional to 631,632.44, 871,616.04 and 345,154.88

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Solution

The fourth proportional to 631,632.44, 871,616.04 and 345,154.88 is: 476,293.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,632.44 : 871,616.04 = 345,154.88 : x
  2. Step 2: Convert to fraction form
    631,632.44/871,616.04 = 345,154.88/x
  3. Step 3: Cross multiply
    631,632.44x = 871,616.04 × 345,154.88
  4. Step 4: Simplify right side
    631,632.44x = 300,842,529,692.28
  5. Step 5: Solve for x
    x = 300,842,529,692.28/631,632.44
  6. Step 6: Final answer
    x = 476,293.66

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1.5x scale

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.