Home / 670,660.39-1,006,090.37-221,428.72

Finding the Fourth Proportional to 670,660.39, 1,006,090.37 and 221,428.72

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Solution

The fourth proportional to 670,660.39, 1,006,090.37 and 221,428.72 is: 332,176.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,660.39 : 1,006,090.37 = 221,428.72 : x
  2. Step 2: Convert to fraction form
    670,660.39/1,006,090.37 = 221,428.72/x
  3. Step 3: Cross multiply
    670,660.39x = 1,006,090.37 × 221,428.72
  4. Step 4: Simplify right side
    670,660.39x = 222,777,296,695.83
  5. Step 5: Solve for x
    x = 222,777,296,695.83/670,660.39
  6. Step 6: Final answer
    x = 332,176.02

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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.