Home / 988,457.78-1,481,625.37-419,358.57

Finding the Fourth Proportional to 988,457.78, 1,481,625.37 and 419,358.57

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Solution

The fourth proportional to 988,457.78, 1,481,625.37 and 419,358.57 is: 628,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,457.78 : 1,481,625.37 = 419,358.57 : x
  2. Step 2: Convert to fraction form
    988,457.78/1,481,625.37 = 419,358.57/x
  3. Step 3: Cross multiply
    988,457.78x = 1,481,625.37 × 419,358.57
  4. Step 4: Simplify right side
    988,457.78x = 621,332,291,407.02
  5. Step 5: Solve for x
    x = 621,332,291,407.02/988,457.78
  6. Step 6: Final answer
    x = 628,587.59

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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.