Home / 420,919.55-580,881.74-229,945.24

Finding the Fourth Proportional to 420,919.55, 580,881.74 and 229,945.24

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Solution

The fourth proportional to 420,919.55, 580,881.74 and 229,945.24 is: 317,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,919.55 : 580,881.74 = 229,945.24 : x
  2. Step 2: Convert to fraction form
    420,919.55/580,881.74 = 229,945.24/x
  3. Step 3: Cross multiply
    420,919.55x = 580,881.74 × 229,945.24
  4. Step 4: Simplify right side
    420,919.55x = 133,570,991,115.92
  5. Step 5: Solve for x
    x = 133,570,991,115.92/420,919.55
  6. Step 6: Final answer
    x = 317,331.40

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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.