Home / 741,220.42-1,022,993.87-469,313.55

Finding the Fourth Proportional to 741,220.42, 1,022,993.87 and 469,313.55

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Solution

The fourth proportional to 741,220.42, 1,022,993.87 and 469,313.55 is: 647,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,220.42 : 1,022,993.87 = 469,313.55 : x
  2. Step 2: Convert to fraction form
    741,220.42/1,022,993.87 = 469,313.55/x
  3. Step 3: Cross multiply
    741,220.42x = 1,022,993.87 × 469,313.55
  4. Step 4: Simplify right side
    741,220.42x = 480,104,880,816.25
  5. Step 5: Solve for x
    x = 480,104,880,816.25/741,220.42
  6. Step 6: Final answer
    x = 647,722.15

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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.