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Finding the Fourth Proportional to 522,049.86, 782,277.66 and 388,283.22

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Solution

The fourth proportional to 522,049.86, 782,277.66 and 388,283.22 is: 581,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,049.86 : 782,277.66 = 388,283.22 : x
  2. Step 2: Convert to fraction form
    522,049.86/782,277.66 = 388,283.22/x
  3. Step 3: Cross multiply
    522,049.86x = 782,277.66 × 388,283.22
  4. Step 4: Simplify right side
    522,049.86x = 303,745,288,758.87
  5. Step 5: Solve for x
    x = 303,745,288,758.87/522,049.86
  6. Step 6: Final answer
    x = 581,831.95

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1.5x scale

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.