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Finding the Fourth Proportional to 524,961.60, 787,831.20 and 347,409.60

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Solution

The fourth proportional to 524,961.60, 787,831.20 and 347,409.60 is: 521,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,961.60 : 787,831.20 = 347,409.60 : x
  2. Step 2: Convert to fraction form
    524,961.60/787,831.20 = 347,409.60/x
  3. Step 3: Cross multiply
    524,961.60x = 787,831.20 × 347,409.60
  4. Step 4: Simplify right side
    524,961.60x = 273,700,122,059.52
  5. Step 5: Solve for x
    x = 273,700,122,059.52/524,961.60
  6. Step 6: Final answer
    x = 521,371.70

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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.