Home / 2,158,426.11-2,978,590.23-1,191,531.54

Finding the Fourth Proportional to 2,158,426.11, 2,978,590.23 and 1,191,531.54

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Solution

The fourth proportional to 2,158,426.11, 2,978,590.23 and 1,191,531.54 is: 1,644,292.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,426.11 : 2,978,590.23 = 1,191,531.54 : x
  2. Step 2: Convert to fraction form
    2,158,426.11/2,978,590.23 = 1,191,531.54/x
  3. Step 3: Cross multiply
    2,158,426.11x = 2,978,590.23 × 1,191,531.54
  4. Step 4: Simplify right side
    2,158,426.11x = 3,549,084,203,780.85
  5. Step 5: Solve for x
    x = 3,549,084,203,780.85/2,158,426.11
  6. Step 6: Final answer
    x = 1,644,292.66

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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.