Home / 670,494.70-1,005,528.21-221,131.81

Finding the Fourth Proportional to 670,494.70, 1,005,528.21 and 221,131.81

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Solution

The fourth proportional to 670,494.70, 1,005,528.21 and 221,131.81 is: 331,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,494.70 : 1,005,528.21 = 221,131.81 : x
  2. Step 2: Convert to fraction form
    670,494.70/1,005,528.21 = 221,131.81/x
  3. Step 3: Cross multiply
    670,494.70x = 1,005,528.21 × 221,131.81
  4. Step 4: Simplify right side
    670,494.70x = 222,354,273,083.36
  5. Step 5: Solve for x
    x = 222,354,273,083.36/670,494.70
  6. Step 6: Final answer
    x = 331,627.19

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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.