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Finding the Fourth Proportional to 522,821.80, 784,815.90 and 488,558.80

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Solution

The fourth proportional to 522,821.80, 784,815.90 and 488,558.80 is: 733,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,821.80 : 784,815.90 = 488,558.80 : x
  2. Step 2: Convert to fraction form
    522,821.80/784,815.90 = 488,558.80/x
  3. Step 3: Cross multiply
    522,821.80x = 784,815.90 × 488,558.80
  4. Step 4: Simplify right side
    522,821.80x = 383,428,714,324.92
  5. Step 5: Solve for x
    x = 383,428,714,324.92/522,821.80
  6. Step 6: Final answer
    x = 733,383.18

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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.