Home / 687,451.56-1,031,100.94-214,097.32

Finding the Fourth Proportional to 687,451.56, 1,031,100.94 and 214,097.32

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Solution

The fourth proportional to 687,451.56, 1,031,100.94 and 214,097.32 is: 321,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,451.56 : 1,031,100.94 = 214,097.32 : x
  2. Step 2: Convert to fraction form
    687,451.56/1,031,100.94 = 214,097.32/x
  3. Step 3: Cross multiply
    687,451.56x = 1,031,100.94 × 214,097.32
  4. Step 4: Simplify right side
    687,451.56x = 220,755,947,903.48
  5. Step 5: Solve for x
    x = 220,755,947,903.48/687,451.56
  6. Step 6: Final answer
    x = 321,122.19

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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.