Home / 678,074.38-1,017,078.68-251,693.30

Finding the Fourth Proportional to 678,074.38, 1,017,078.68 and 251,693.30

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Solution

The fourth proportional to 678,074.38, 1,017,078.68 and 251,693.30 is: 377,527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,074.38 : 1,017,078.68 = 251,693.30 : x
  2. Step 2: Convert to fraction form
    678,074.38/1,017,078.68 = 251,693.30/x
  3. Step 3: Cross multiply
    678,074.38x = 1,017,078.68 × 251,693.30
  4. Step 4: Simplify right side
    678,074.38x = 255,991,889,328.84
  5. Step 5: Solve for x
    x = 255,991,889,328.84/678,074.38
  6. Step 6: Final answer
    x = 377,527.74

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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.