Home / 399,579.13-599,369.07-111,379.25

Finding the Fourth Proportional to 399,579.13, 599,369.07 and 111,379.25

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Solution

The fourth proportional to 399,579.13, 599,369.07 and 111,379.25 is: 167,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,579.13 : 599,369.07 = 111,379.25 : x
  2. Step 2: Convert to fraction form
    399,579.13/599,369.07 = 111,379.25/x
  3. Step 3: Cross multiply
    399,579.13x = 599,369.07 × 111,379.25
  4. Step 4: Simplify right side
    399,579.13x = 66,757,278,779.38
  5. Step 5: Solve for x
    x = 66,757,278,779.38/399,579.13
  6. Step 6: Final answer
    x = 167,068.98

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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.