Home / 741,018.72-1,022,592.52-418,721.86

Finding the Fourth Proportional to 741,018.72, 1,022,592.52 and 418,721.86

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Solution

The fourth proportional to 741,018.72, 1,022,592.52 and 418,721.86 is: 577,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,018.72 : 1,022,592.52 = 418,721.86 : x
  2. Step 2: Convert to fraction form
    741,018.72/1,022,592.52 = 418,721.86/x
  3. Step 3: Cross multiply
    741,018.72x = 1,022,592.52 × 418,721.86
  4. Step 4: Simplify right side
    741,018.72x = 428,181,841,996.49
  5. Step 5: Solve for x
    x = 428,181,841,996.49/741,018.72
  6. Step 6: Final answer
    x = 577,828.64

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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.