Home / 980,638.38-1,470,874.53-340,777.88

Finding the Fourth Proportional to 980,638.38, 1,470,874.53 and 340,777.88

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Solution

The fourth proportional to 980,638.38, 1,470,874.53 and 340,777.88 is: 511,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,638.38 : 1,470,874.53 = 340,777.88 : x
  2. Step 2: Convert to fraction form
    980,638.38/1,470,874.53 = 340,777.88/x
  3. Step 3: Cross multiply
    980,638.38x = 1,470,874.53 × 340,777.88
  4. Step 4: Simplify right side
    980,638.38x = 501,241,501,601.85
  5. Step 5: Solve for x
    x = 501,241,501,601.85/980,638.38
  6. Step 6: Final answer
    x = 511,137.96

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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.