Home / 842,553.39-1,263,705.50-309,949.87

Finding the Fourth Proportional to 842,553.39, 1,263,705.50 and 309,949.87

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Solution

The fourth proportional to 842,553.39, 1,263,705.50 and 309,949.87 is: 464,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,553.39 : 1,263,705.50 = 309,949.87 : x
  2. Step 2: Convert to fraction form
    842,553.39/1,263,705.50 = 309,949.87/x
  3. Step 3: Cross multiply
    842,553.39x = 1,263,705.50 × 309,949.87
  4. Step 4: Simplify right side
    842,553.39x = 391,685,355,443.29
  5. Step 5: Solve for x
    x = 391,685,355,443.29/842,553.39
  6. Step 6: Final answer
    x = 464,878.97

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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.