Home / 668,538.34-1,002,709.05-219,306.67

Finding the Fourth Proportional to 668,538.34, 1,002,709.05 and 219,306.67

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Solution

The fourth proportional to 668,538.34, 1,002,709.05 and 219,306.67 is: 328,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,538.34 : 1,002,709.05 = 219,306.67 : x
  2. Step 2: Convert to fraction form
    668,538.34/1,002,709.05 = 219,306.67/x
  3. Step 3: Cross multiply
    668,538.34x = 1,002,709.05 × 219,306.67
  4. Step 4: Simplify right side
    668,538.34x = 219,900,782,734.36
  5. Step 5: Solve for x
    x = 219,900,782,734.36/668,538.34
  6. Step 6: Final answer
    x = 328,927.71

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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.