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Finding the Fourth Proportional to 422,788.36, 583,448.10 and 231,797.80

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Solution

The fourth proportional to 422,788.36, 583,448.10 and 231,797.80 is: 319,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,788.36 : 583,448.10 = 231,797.80 : x
  2. Step 2: Convert to fraction form
    422,788.36/583,448.10 = 231,797.80/x
  3. Step 3: Cross multiply
    422,788.36x = 583,448.10 × 231,797.80
  4. Step 4: Simplify right side
    422,788.36x = 135,241,985,994.18
  5. Step 5: Solve for x
    x = 135,241,985,994.18/422,788.36
  6. Step 6: Final answer
    x = 319,881.05

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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.