Home / 743,259.40-1,025,716.94-420,964.72

Finding the Fourth Proportional to 743,259.40, 1,025,716.94 and 420,964.72

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Solution

The fourth proportional to 743,259.40, 1,025,716.94 and 420,964.72 is: 580,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,259.40 : 1,025,716.94 = 420,964.72 : x
  2. Step 2: Convert to fraction form
    743,259.40/1,025,716.94 = 420,964.72/x
  3. Step 3: Cross multiply
    743,259.40x = 1,025,716.94 × 420,964.72
  4. Step 4: Simplify right side
    743,259.40x = 431,790,644,446.36
  5. Step 5: Solve for x
    x = 431,790,644,446.36/743,259.40
  6. Step 6: Final answer
    x = 580,942.06

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Double scale
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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.