Home / 663,439.38-993,700.39-548,282.09

Finding the Fourth Proportional to 663,439.38, 993,700.39 and 548,282.09

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Solution

The fourth proportional to 663,439.38, 993,700.39 and 548,282.09 is: 821,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,439.38 : 993,700.39 = 548,282.09 : x
  2. Step 2: Convert to fraction form
    663,439.38/993,700.39 = 548,282.09/x
  3. Step 3: Cross multiply
    663,439.38x = 993,700.39 × 548,282.09
  4. Step 4: Simplify right side
    663,439.38x = 544,828,118,953.10
  5. Step 5: Solve for x
    x = 544,828,118,953.10/663,439.38
  6. Step 6: Final answer
    x = 821,217.64

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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.