Home / 763,871.28-1,145,865.24-231,436.41

Finding the Fourth Proportional to 763,871.28, 1,145,865.24 and 231,436.41

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Solution

The fourth proportional to 763,871.28, 1,145,865.24 and 231,436.41 is: 347,172.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,871.28 : 1,145,865.24 = 231,436.41 : x
  2. Step 2: Convert to fraction form
    763,871.28/1,145,865.24 = 231,436.41/x
  3. Step 3: Cross multiply
    763,871.28x = 1,145,865.24 × 231,436.41
  4. Step 4: Simplify right side
    763,871.28x = 265,194,937,489.39
  5. Step 5: Solve for x
    x = 265,194,937,489.39/763,871.28
  6. Step 6: Final answer
    x = 347,172.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.