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Finding the Fourth Proportional to 422,758.88, 583,713.44 and 272,118.32

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Solution

The fourth proportional to 422,758.88, 583,713.44 and 272,118.32 is: 375,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,758.88 : 583,713.44 = 272,118.32 : x
  2. Step 2: Convert to fraction form
    422,758.88/583,713.44 = 272,118.32/x
  3. Step 3: Cross multiply
    422,758.88x = 583,713.44 × 272,118.32
  4. Step 4: Simplify right side
    422,758.88x = 158,839,116,375.06
  5. Step 5: Solve for x
    x = 158,839,116,375.06/422,758.88
  6. Step 6: Final answer
    x = 375,720.36

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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.