Home / 422,788.68-583,475.40-279,297.18

Finding the Fourth Proportional to 422,788.68, 583,475.40 and 279,297.18

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Solution

The fourth proportional to 422,788.68, 583,475.40 and 279,297.18 is: 385,447.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,788.68 : 583,475.40 = 279,297.18 : x
  2. Step 2: Convert to fraction form
    422,788.68/583,475.40 = 279,297.18/x
  3. Step 3: Cross multiply
    422,788.68x = 583,475.40 × 279,297.18
  4. Step 4: Simplify right side
    422,788.68x = 162,963,033,819.37
  5. Step 5: Solve for x
    x = 162,963,033,819.37/422,788.68
  6. Step 6: Final answer
    x = 385,447.96

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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.