Home / 420,910.25-580,846.70-229,924.40

Finding the Fourth Proportional to 420,910.25, 580,846.70 and 229,924.40

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Solution

The fourth proportional to 420,910.25, 580,846.70 and 229,924.40 is: 317,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,910.25 : 580,846.70 = 229,924.40 : x
  2. Step 2: Convert to fraction form
    420,910.25/580,846.70 = 229,924.40/x
  3. Step 3: Cross multiply
    420,910.25x = 580,846.70 × 229,924.40
  4. Step 4: Simplify right side
    420,910.25x = 133,550,824,935.63
  5. Step 5: Solve for x
    x = 133,550,824,935.63/420,910.25
  6. Step 6: Final answer
    x = 317,290.51

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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.