Home / 678,022.01-1,016,639.22-257,068.25

Finding the Fourth Proportional to 678,022.01, 1,016,639.22 and 257,068.25

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Solution

The fourth proportional to 678,022.01, 1,016,639.22 and 257,068.25 is: 385,453.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,022.01 : 1,016,639.22 = 257,068.25 : x
  2. Step 2: Convert to fraction form
    678,022.01/1,016,639.22 = 257,068.25/x
  3. Step 3: Cross multiply
    678,022.01x = 1,016,639.22 × 257,068.25
  4. Step 4: Simplify right side
    678,022.01x = 261,345,665,166.77
  5. Step 5: Solve for x
    x = 261,345,665,166.77/678,022.01
  6. Step 6: Final answer
    x = 385,453.07

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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.