Home / 1,720,103.80-2,579,234.10-721,703.80

Finding the Fourth Proportional to 1,720,103.80, 2,579,234.10 and 721,703.80

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Solution

The fourth proportional to 1,720,103.80, 2,579,234.10 and 721,703.80 is: 1,082,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,103.80 : 2,579,234.10 = 721,703.80 : x
  2. Step 2: Convert to fraction form
    1,720,103.80/2,579,234.10 = 721,703.80/x
  3. Step 3: Cross multiply
    1,720,103.80x = 2,579,234.10 × 721,703.80
  4. Step 4: Simplify right side
    1,720,103.80x = 1,861,443,051,059.58
  5. Step 5: Solve for x
    x = 1,861,443,051,059.58/1,720,103.80
  6. Step 6: Final answer
    x = 1,082,169.02

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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.