Home / 678,007.64-1,017,175.90-204,664.70

Finding the Fourth Proportional to 678,007.64, 1,017,175.90 and 204,664.70

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Solution

The fourth proportional to 678,007.64, 1,017,175.90 and 204,664.70 is: 307,046.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,007.64 : 1,017,175.90 = 204,664.70 : x
  2. Step 2: Convert to fraction form
    678,007.64/1,017,175.90 = 204,664.70/x
  3. Step 3: Cross multiply
    678,007.64x = 1,017,175.90 × 204,664.70
  4. Step 4: Simplify right side
    678,007.64x = 208,180,000,420.73
  5. Step 5: Solve for x
    x = 208,180,000,420.73/678,007.64
  6. Step 6: Final answer
    x = 307,046.69

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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.