Home / 720,434.88-1,080,652.32-187,954.56

Finding the Fourth Proportional to 720,434.88, 1,080,652.32 and 187,954.56

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Solution

The fourth proportional to 720,434.88, 1,080,652.32 and 187,954.56 is: 281,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,434.88 : 1,080,652.32 = 187,954.56 : x
  2. Step 2: Convert to fraction form
    720,434.88/1,080,652.32 = 187,954.56/x
  3. Step 3: Cross multiply
    720,434.88x = 1,080,652.32 × 187,954.56
  4. Step 4: Simplify right side
    720,434.88x = 203,113,531,318.58
  5. Step 5: Solve for x
    x = 203,113,531,318.58/720,434.88
  6. Step 6: Final answer
    x = 281,931.84

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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.