Home / 1,327,199.18-1,981,109.70-1,138,869.77

Finding the Fourth Proportional to 1,327,199.18, 1,981,109.70 and 1,138,869.77

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Solution

The fourth proportional to 1,327,199.18, 1,981,109.70 and 1,138,869.77 is: 1,699,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,199.18 : 1,981,109.70 = 1,138,869.77 : x
  2. Step 2: Convert to fraction form
    1,327,199.18/1,981,109.70 = 1,138,869.77/x
  3. Step 3: Cross multiply
    1,327,199.18x = 1,981,109.70 × 1,138,869.77
  4. Step 4: Simplify right side
    1,327,199.18x = 2,256,225,938,478.22
  5. Step 5: Solve for x
    x = 2,256,225,938,478.22/1,327,199.18
  6. Step 6: Final answer
    x = 1,699,990.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.