Home / 1,340,538.40-2,010,789.90-329,669.08

Finding the Fourth Proportional to 1,340,538.40, 2,010,789.90 and 329,669.08

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Solution

The fourth proportional to 1,340,538.40, 2,010,789.90 and 329,669.08 is: 494,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,538.40 : 2,010,789.90 = 329,669.08 : x
  2. Step 2: Convert to fraction form
    1,340,538.40/2,010,789.90 = 329,669.08/x
  3. Step 3: Cross multiply
    1,340,538.40x = 2,010,789.90 × 329,669.08
  4. Step 4: Simplify right side
    1,340,538.40x = 662,895,256,406.29
  5. Step 5: Solve for x
    x = 662,895,256,406.29/1,340,538.40
  6. Step 6: Final answer
    x = 494,499.27

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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.