Home / 987,976.92-1,482,090.92-313,817.70

Finding the Fourth Proportional to 987,976.92, 1,482,090.92 and 313,817.70

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Solution

The fourth proportional to 987,976.92, 1,482,090.92 and 313,817.70 is: 470,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,976.92 : 1,482,090.92 = 313,817.70 : x
  2. Step 2: Convert to fraction form
    987,976.92/1,482,090.92 = 313,817.70/x
  3. Step 3: Cross multiply
    987,976.92x = 1,482,090.92 × 313,817.70
  4. Step 4: Simplify right side
    987,976.92x = 465,106,363,705.28
  5. Step 5: Solve for x
    x = 465,106,363,705.28/987,976.92
  6. Step 6: Final answer
    x = 470,766.43

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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.