Home / 878,043.48-1,211,705.82-475,635.48

Finding the Fourth Proportional to 878,043.48, 1,211,705.82 and 475,635.48

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Solution

The fourth proportional to 878,043.48, 1,211,705.82 and 475,635.48 is: 656,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,043.48 : 1,211,705.82 = 475,635.48 : x
  2. Step 2: Convert to fraction form
    878,043.48/1,211,705.82 = 475,635.48/x
  3. Step 3: Cross multiply
    878,043.48x = 1,211,705.82 × 475,635.48
  4. Step 4: Simplify right side
    878,043.48x = 576,330,279,314.49
  5. Step 5: Solve for x
    x = 576,330,279,314.49/878,043.48
  6. Step 6: Final answer
    x = 656,380.11

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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.