Home / 1,231,976.82-1,700,110.10-688,120.34

Finding the Fourth Proportional to 1,231,976.82, 1,700,110.10 and 688,120.34

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Solution

The fourth proportional to 1,231,976.82, 1,700,110.10 and 688,120.34 is: 949,596.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,976.82 : 1,700,110.10 = 688,120.34 : x
  2. Step 2: Convert to fraction form
    1,231,976.82/1,700,110.10 = 688,120.34/x
  3. Step 3: Cross multiply
    1,231,976.82x = 1,700,110.10 × 688,120.34
  4. Step 4: Simplify right side
    1,231,976.82x = 1,169,880,346,020.01
  5. Step 5: Solve for x
    x = 1,169,880,346,020.01/1,231,976.82
  6. Step 6: Final answer
    x = 949,596.07

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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.