Home / 1,129,699.72-1,694,836.50-320,083.24

Finding the Fourth Proportional to 1,129,699.72, 1,694,836.50 and 320,083.24

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Solution

The fourth proportional to 1,129,699.72, 1,694,836.50 and 320,083.24 is: 480,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,699.72 : 1,694,836.50 = 320,083.24 : x
  2. Step 2: Convert to fraction form
    1,129,699.72/1,694,836.50 = 320,083.24/x
  3. Step 3: Cross multiply
    1,129,699.72x = 1,694,836.50 × 320,083.24
  4. Step 4: Simplify right side
    1,129,699.72x = 542,488,758,190.26
  5. Step 5: Solve for x
    x = 542,488,758,190.26/1,129,699.72
  6. Step 6: Final answer
    x = 480,206.15

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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.