Home / 741,220.10-1,022,993.44-469,313.28

Finding the Fourth Proportional to 741,220.10, 1,022,993.44 and 469,313.28

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Solution

The fourth proportional to 741,220.10, 1,022,993.44 and 469,313.28 is: 647,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,220.10 : 1,022,993.44 = 469,313.28 : x
  2. Step 2: Convert to fraction form
    741,220.10/1,022,993.44 = 469,313.28/x
  3. Step 3: Cross multiply
    741,220.10x = 1,022,993.44 × 469,313.28
  4. Step 4: Simplify right side
    741,220.10x = 480,104,406,744.88
  5. Step 5: Solve for x
    x = 480,104,406,744.88/741,220.10
  6. Step 6: Final answer
    x = 647,721.79

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1.5x scale

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.