Home / 840,839.78-1,260,648.67-335,249.12

Finding the Fourth Proportional to 840,839.78, 1,260,648.67 and 335,249.12

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Solution

The fourth proportional to 840,839.78, 1,260,648.67 and 335,249.12 is: 502,630.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,839.78 : 1,260,648.67 = 335,249.12 : x
  2. Step 2: Convert to fraction form
    840,839.78/1,260,648.67 = 335,249.12/x
  3. Step 3: Cross multiply
    840,839.78x = 1,260,648.67 × 335,249.12
  4. Step 4: Simplify right side
    840,839.78x = 422,631,357,246.67
  5. Step 5: Solve for x
    x = 422,631,357,246.67/840,839.78
  6. Step 6: Final answer
    x = 502,630.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.