Home / 1,051,621.39-1,449,537.33-821,779.21

Finding the Fourth Proportional to 1,051,621.39, 1,449,537.33 and 821,779.21

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Solution

The fourth proportional to 1,051,621.39, 1,449,537.33 and 821,779.21 is: 1,132,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,621.39 : 1,449,537.33 = 821,779.21 : x
  2. Step 2: Convert to fraction form
    1,051,621.39/1,449,537.33 = 821,779.21/x
  3. Step 3: Cross multiply
    1,051,621.39x = 1,449,537.33 × 821,779.21
  4. Step 4: Simplify right side
    1,051,621.39x = 1,191,199,641,912.91
  5. Step 5: Solve for x
    x = 1,191,199,641,912.91/1,051,621.39
  6. Step 6: Final answer
    x = 1,132,726.71

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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.