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Finding the Fourth Proportional to 631,523.18, 871,491.68 and 345,037.10

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Solution

The fourth proportional to 631,523.18, 871,491.68 and 345,037.10 is: 476,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,523.18 : 871,491.68 = 345,037.10 : x
  2. Step 2: Convert to fraction form
    631,523.18/871,491.68 = 345,037.10/x
  3. Step 3: Cross multiply
    631,523.18x = 871,491.68 × 345,037.10
  4. Step 4: Simplify right side
    631,523.18x = 300,696,961,941.33
  5. Step 5: Solve for x
    x = 300,696,961,941.33/631,523.18
  6. Step 6: Final answer
    x = 476,145.57

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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.