Home / 791,428.86-1,187,134.53-192,390.60

Finding the Fourth Proportional to 791,428.86, 1,187,134.53 and 192,390.60

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Solution

The fourth proportional to 791,428.86, 1,187,134.53 and 192,390.60 is: 288,583.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,428.86 : 1,187,134.53 = 192,390.60 : x
  2. Step 2: Convert to fraction form
    791,428.86/1,187,134.53 = 192,390.60/x
  3. Step 3: Cross multiply
    791,428.86x = 1,187,134.53 × 192,390.60
  4. Step 4: Simplify right side
    791,428.86x = 228,393,524,507.42
  5. Step 5: Solve for x
    x = 228,393,524,507.42/791,428.86
  6. Step 6: Final answer
    x = 288,583.77

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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.