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Finding the Fourth Proportional to 522,769.80, 784,737.90 and 488,506.80

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Solution

The fourth proportional to 522,769.80, 784,737.90 and 488,506.80 is: 733,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,769.80 : 784,737.90 = 488,506.80 : x
  2. Step 2: Convert to fraction form
    522,769.80/784,737.90 = 488,506.80/x
  3. Step 3: Cross multiply
    522,769.80x = 784,737.90 × 488,506.80
  4. Step 4: Simplify right side
    522,769.80x = 383,349,800,367.72
  5. Step 5: Solve for x
    x = 383,349,800,367.72/522,769.80
  6. Step 6: Final answer
    x = 733,305.18

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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.