Home / 745,105.64-1,028,217.24-422,796.50

Finding the Fourth Proportional to 745,105.64, 1,028,217.24 and 422,796.50

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Solution

The fourth proportional to 745,105.64, 1,028,217.24 and 422,796.50 is: 583,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,105.64 : 1,028,217.24 = 422,796.50 : x
  2. Step 2: Convert to fraction form
    745,105.64/1,028,217.24 = 422,796.50/x
  3. Step 3: Cross multiply
    745,105.64x = 1,028,217.24 × 422,796.50
  4. Step 4: Simplify right side
    745,105.64x = 434,726,650,311.66
  5. Step 5: Solve for x
    x = 434,726,650,311.66/745,105.64
  6. Step 6: Final answer
    x = 583,442.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.