Home / 741,009.72-1,022,580.07-418,712.88

Finding the Fourth Proportional to 741,009.72, 1,022,580.07 and 418,712.88

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Solution

The fourth proportional to 741,009.72, 1,022,580.07 and 418,712.88 is: 577,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,009.72 : 1,022,580.07 = 418,712.88 : x
  2. Step 2: Convert to fraction form
    741,009.72/1,022,580.07 = 418,712.88/x
  3. Step 3: Cross multiply
    741,009.72x = 1,022,580.07 × 418,712.88
  4. Step 4: Simplify right side
    741,009.72x = 428,167,446,140.30
  5. Step 5: Solve for x
    x = 428,167,446,140.30/741,009.72
  6. Step 6: Final answer
    x = 577,816.23

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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.