Home / 678,005.64-1,017,172.89-204,662.70

Finding the Fourth Proportional to 678,005.64, 1,017,172.89 and 204,662.70

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Solution

The fourth proportional to 678,005.64, 1,017,172.89 and 204,662.70 is: 307,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,005.64 : 1,017,172.89 = 204,662.70 : x
  2. Step 2: Convert to fraction form
    678,005.64/1,017,172.89 = 204,662.70/x
  3. Step 3: Cross multiply
    678,005.64x = 1,017,172.89 × 204,662.70
  4. Step 4: Simplify right side
    678,005.64x = 208,177,350,034.20
  5. Step 5: Solve for x
    x = 208,177,350,034.20/678,005.64
  6. Step 6: Final answer
    x = 307,043.68

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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.