Home / 420,499.19-580,364.12-250,744.25

Finding the Fourth Proportional to 420,499.19, 580,364.12 and 250,744.25

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Solution

The fourth proportional to 420,499.19, 580,364.12 and 250,744.25 is: 346,071.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,499.19 : 580,364.12 = 250,744.25 : x
  2. Step 2: Convert to fraction form
    420,499.19/580,364.12 = 250,744.25/x
  3. Step 3: Cross multiply
    420,499.19x = 580,364.12 × 250,744.25
  4. Step 4: Simplify right side
    420,499.19x = 145,522,965,996.31
  5. Step 5: Solve for x
    x = 145,522,965,996.31/420,499.19
  6. Step 6: Final answer
    x = 346,071.93

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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.