Home / 1,126,635.76-1,689,954.90-285,187.51

Finding the Fourth Proportional to 1,126,635.76, 1,689,954.90 and 285,187.51

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Solution

The fourth proportional to 1,126,635.76, 1,689,954.90 and 285,187.51 is: 427,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,635.76 : 1,689,954.90 = 285,187.51 : x
  2. Step 2: Convert to fraction form
    1,126,635.76/1,689,954.90 = 285,187.51/x
  3. Step 3: Cross multiply
    1,126,635.76x = 1,689,954.90 × 285,187.51
  4. Step 4: Simplify right side
    1,126,635.76x = 481,954,029,943.30
  5. Step 5: Solve for x
    x = 481,954,029,943.30/1,126,635.76
  6. Step 6: Final answer
    x = 427,781.58

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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.