Home / 678,025-1,017,008.34-204,696.28

Finding the Fourth Proportional to 678,025, 1,017,008.34 and 204,696.28

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Solution

The fourth proportional to 678,025, 1,017,008.34 and 204,696.28 is: 307,035.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,025 : 1,017,008.34 = 204,696.28 : x
  2. Step 2: Convert to fraction form
    678,025/1,017,008.34 = 204,696.28/x
  3. Step 3: Cross multiply
    678,025x = 1,017,008.34 × 204,696.28
  4. Step 4: Simplify right side
    678,025x = 208,177,823,926.98
  5. Step 5: Solve for x
    x = 208,177,823,926.98/678,025
  6. Step 6: Final answer
    x = 307,035.62

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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.