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Finding the Fourth Proportional to 631,523.36, 871,492.05 and 345,037.29

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Solution

The fourth proportional to 631,523.36, 871,492.05 and 345,037.29 is: 476,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,523.36 : 871,492.05 = 345,037.29 : x
  2. Step 2: Convert to fraction form
    631,523.36/871,492.05 = 345,037.29/x
  3. Step 3: Cross multiply
    631,523.36x = 871,492.05 × 345,037.29
  4. Step 4: Simplify right side
    631,523.36x = 300,697,255,188.55
  5. Step 5: Solve for x
    x = 300,697,255,188.55/631,523.36
  6. Step 6: Final answer
    x = 476,145.90

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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.