Home / 420,919.44-580,859.28-229,933.68

Finding the Fourth Proportional to 420,919.44, 580,859.28 and 229,933.68

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Solution

The fourth proportional to 420,919.44, 580,859.28 and 229,933.68 is: 317,303.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,919.44 : 580,859.28 = 229,933.68 : x
  2. Step 2: Convert to fraction form
    420,919.44/580,859.28 = 229,933.68/x
  3. Step 3: Cross multiply
    420,919.44x = 580,859.28 × 229,933.68
  4. Step 4: Simplify right side
    420,919.44x = 133,559,111,812.55
  5. Step 5: Solve for x
    x = 133,559,111,812.55/420,919.44
  6. Step 6: Final answer
    x = 317,303.26

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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.