Home / 928,493.12-1,392,863.61-367,396.40

Finding the Fourth Proportional to 928,493.12, 1,392,863.61 and 367,396.40

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Solution

The fourth proportional to 928,493.12, 1,392,863.61 and 367,396.40 is: 551,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,493.12 : 1,392,863.61 = 367,396.40 : x
  2. Step 2: Convert to fraction form
    928,493.12/1,392,863.61 = 367,396.40/x
  3. Step 3: Cross multiply
    928,493.12x = 1,392,863.61 × 367,396.40
  4. Step 4: Simplify right side
    928,493.12x = 511,733,069,040.69
  5. Step 5: Solve for x
    x = 511,733,069,040.69/928,493.12
  6. Step 6: Final answer
    x = 551,143.63

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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.