Home / 670,151.06-1,005,212.76-220,898.90

Finding the Fourth Proportional to 670,151.06, 1,005,212.76 and 220,898.90

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Solution

The fourth proportional to 670,151.06, 1,005,212.76 and 220,898.90 is: 331,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,151.06 : 1,005,212.76 = 220,898.90 : x
  2. Step 2: Convert to fraction form
    670,151.06/1,005,212.76 = 220,898.90/x
  3. Step 3: Cross multiply
    670,151.06x = 1,005,212.76 × 220,898.90
  4. Step 4: Simplify right side
    670,151.06x = 222,050,392,949.96
  5. Step 5: Solve for x
    x = 222,050,392,949.96/670,151.06
  6. Step 6: Final answer
    x = 331,343.79

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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.