Home / 862,017.72-1,293,228.78-262,978.68

Finding the Fourth Proportional to 862,017.72, 1,293,228.78 and 262,978.68

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Solution

The fourth proportional to 862,017.72, 1,293,228.78 and 262,978.68 is: 394,529.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,017.72 : 1,293,228.78 = 262,978.68 : x
  2. Step 2: Convert to fraction form
    862,017.72/1,293,228.78 = 262,978.68/x
  3. Step 3: Cross multiply
    862,017.72x = 1,293,228.78 × 262,978.68
  4. Step 4: Simplify right side
    862,017.72x = 340,091,597,502.41
  5. Step 5: Solve for x
    x = 340,091,597,502.41/862,017.72
  6. Step 6: Final answer
    x = 394,529.71

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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.