Home / 723,999.45-1,086,422.54-303,240.09

Finding the Fourth Proportional to 723,999.45, 1,086,422.54 and 303,240.09

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Solution

The fourth proportional to 723,999.45, 1,086,422.54 and 303,240.09 is: 455,037.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,999.45 : 1,086,422.54 = 303,240.09 : x
  2. Step 2: Convert to fraction form
    723,999.45/1,086,422.54 = 303,240.09/x
  3. Step 3: Cross multiply
    723,999.45x = 1,086,422.54 × 303,240.09
  4. Step 4: Simplify right side
    723,999.45x = 329,446,867,291.43
  5. Step 5: Solve for x
    x = 329,446,867,291.43/723,999.45
  6. Step 6: Final answer
    x = 455,037.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.