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Finding the Fourth Proportional to 578,379.90, 798,050.84 and 363,395.42

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Solution

The fourth proportional to 578,379.90, 798,050.84 and 363,395.42 is: 501,414.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,379.90 : 798,050.84 = 363,395.42 : x
  2. Step 2: Convert to fraction form
    578,379.90/798,050.84 = 363,395.42/x
  3. Step 3: Cross multiply
    578,379.90x = 798,050.84 × 363,395.42
  4. Step 4: Simplify right side
    578,379.90x = 290,008,020,183.15
  5. Step 5: Solve for x
    x = 290,008,020,183.15/578,379.90
  6. Step 6: Final answer
    x = 501,414.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.