Home / 840,838.78-1,260,647.17-335,248.12

Finding the Fourth Proportional to 840,838.78, 1,260,647.17 and 335,248.12

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Solution

The fourth proportional to 840,838.78, 1,260,647.17 and 335,248.12 is: 502,628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,838.78 : 1,260,647.17 = 335,248.12 : x
  2. Step 2: Convert to fraction form
    840,838.78/1,260,647.17 = 335,248.12/x
  3. Step 3: Cross multiply
    840,838.78x = 1,260,647.17 × 335,248.12
  4. Step 4: Simplify right side
    840,838.78x = 422,629,593,725.82
  5. Step 5: Solve for x
    x = 422,629,593,725.82/840,838.78
  6. Step 6: Final answer
    x = 502,628.57

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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.