Home / 1,991,403.74-2,748,572.34-1,266,109.79

Finding the Fourth Proportional to 1,991,403.74, 2,748,572.34 and 1,266,109.79

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Solution

The fourth proportional to 1,991,403.74, 2,748,572.34 and 1,266,109.79 is: 1,747,508.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,403.74 : 2,748,572.34 = 1,266,109.79 : x
  2. Step 2: Convert to fraction form
    1,991,403.74/2,748,572.34 = 1,266,109.79/x
  3. Step 3: Cross multiply
    1,991,403.74x = 2,748,572.34 × 1,266,109.79
  4. Step 4: Simplify right side
    1,991,403.74x = 3,479,994,348,197.21
  5. Step 5: Solve for x
    x = 3,479,994,348,197.21/1,991,403.74
  6. Step 6: Final answer
    x = 1,747,508.19

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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.