Home / 678,169.65-1,017,222.58-251,790.31

Finding the Fourth Proportional to 678,169.65, 1,017,222.58 and 251,790.31

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Solution

The fourth proportional to 678,169.65, 1,017,222.58 and 251,790.31 is: 377,673.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,169.65 : 1,017,222.58 = 251,790.31 : x
  2. Step 2: Convert to fraction form
    678,169.65/1,017,222.58 = 251,790.31/x
  3. Step 3: Cross multiply
    678,169.65x = 1,017,222.58 × 251,790.31
  4. Step 4: Simplify right side
    678,169.65x = 256,126,788,757.20
  5. Step 5: Solve for x
    x = 256,126,788,757.20/678,169.65
  6. Step 6: Final answer
    x = 377,673.62

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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.