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Finding the Fourth Proportional to 631,732.23, 871,788.37 and 345,252.24

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Solution

The fourth proportional to 631,732.23, 871,788.37 and 345,252.24 is: 476,446.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,732.23 : 871,788.37 = 345,252.24 : x
  2. Step 2: Convert to fraction form
    631,732.23/871,788.37 = 345,252.24/x
  3. Step 3: Cross multiply
    631,732.23x = 871,788.37 × 345,252.24
  4. Step 4: Simplify right side
    631,732.23x = 300,986,887,332.67
  5. Step 5: Solve for x
    x = 300,986,887,332.67/631,732.23
  6. Step 6: Final answer
    x = 476,446.94

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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.