Home / 1,138,234.70-1,707,438.45-339,453.90

Finding the Fourth Proportional to 1,138,234.70, 1,707,438.45 and 339,453.90

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Solution

The fourth proportional to 1,138,234.70, 1,707,438.45 and 339,453.90 is: 509,206.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,234.70 : 1,707,438.45 = 339,453.90 : x
  2. Step 2: Convert to fraction form
    1,138,234.70/1,707,438.45 = 339,453.90/x
  3. Step 3: Cross multiply
    1,138,234.70x = 1,707,438.45 × 339,453.90
  4. Step 4: Simplify right side
    1,138,234.70x = 579,596,640,862.46
  5. Step 5: Solve for x
    x = 579,596,640,862.46/1,138,234.70
  6. Step 6: Final answer
    x = 509,206.62

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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.