Home / 1,991,425.91-2,748,602.77-1,266,131.86

Finding the Fourth Proportional to 1,991,425.91, 2,748,602.77 and 1,266,131.86

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Solution

The fourth proportional to 1,991,425.91, 2,748,602.77 and 1,266,131.86 is: 1,747,538.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,425.91 : 2,748,602.77 = 1,266,131.86 : x
  2. Step 2: Convert to fraction form
    1,991,425.91/2,748,602.77 = 1,266,131.86/x
  3. Step 3: Cross multiply
    1,991,425.91x = 2,748,602.77 × 1,266,131.86
  4. Step 4: Simplify right side
    1,991,425.91x = 3,480,093,527,544.42
  5. Step 5: Solve for x
    x = 3,480,093,527,544.42/1,991,425.91
  6. Step 6: Final answer
    x = 1,747,538.54

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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.