Home / 1,919,814.48-2,879,196.83-721,644.66

Finding the Fourth Proportional to 1,919,814.48, 2,879,196.83 and 721,644.66

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Solution

The fourth proportional to 1,919,814.48, 2,879,196.83 and 721,644.66 is: 1,082,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,814.48 : 2,879,196.83 = 721,644.66 : x
  2. Step 2: Convert to fraction form
    1,919,814.48/2,879,196.83 = 721,644.66/x
  3. Step 3: Cross multiply
    1,919,814.48x = 2,879,196.83 × 721,644.66
  4. Step 4: Simplify right side
    1,919,814.48x = 2,077,757,017,458.43
  5. Step 5: Solve for x
    x = 2,077,757,017,458.43/1,919,814.48
  6. Step 6: Final answer
    x = 1,082,269.69

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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.