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Finding the Fourth Proportional to 631,523.38, 871,492.08 and 345,037.32

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Solution

The fourth proportional to 631,523.38, 871,492.08 and 345,037.32 is: 476,145.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,523.38 : 871,492.08 = 345,037.32 : x
  2. Step 2: Convert to fraction form
    631,523.38/871,492.08 = 345,037.32/x
  3. Step 3: Cross multiply
    631,523.38x = 871,492.08 × 345,037.32
  4. Step 4: Simplify right side
    631,523.38x = 300,697,285,601.78
  5. Step 5: Solve for x
    x = 300,697,285,601.78/631,523.38
  6. Step 6: Final answer
    x = 476,145.93

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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.