Home / 745,105.14-1,028,216.55-422,796

Finding the Fourth Proportional to 745,105.14, 1,028,216.55 and 422,796

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Solution

The fourth proportional to 745,105.14, 1,028,216.55 and 422,796 is: 583,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,105.14 : 1,028,216.55 = 422,796 : x
  2. Step 2: Convert to fraction form
    745,105.14/1,028,216.55 = 422,796/x
  3. Step 3: Cross multiply
    745,105.14x = 1,028,216.55 × 422,796
  4. Step 4: Simplify right side
    745,105.14x = 434,725,844,473.80
  5. Step 5: Solve for x
    x = 434,725,844,473.80/745,105.14
  6. Step 6: Final answer
    x = 583,442.28

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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.