Home / 1,981,877.40-2,972,816.10-1,184,715.90

Finding the Fourth Proportional to 1,981,877.40, 2,972,816.10 and 1,184,715.90

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Solution

The fourth proportional to 1,981,877.40, 2,972,816.10 and 1,184,715.90 is: 1,777,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,877.40 : 2,972,816.10 = 1,184,715.90 : x
  2. Step 2: Convert to fraction form
    1,981,877.40/2,972,816.10 = 1,184,715.90/x
  3. Step 3: Cross multiply
    1,981,877.40x = 2,972,816.10 × 1,184,715.90
  4. Step 4: Simplify right side
    1,981,877.40x = 3,521,942,501,445.99
  5. Step 5: Solve for x
    x = 3,521,942,501,445.99/1,981,877.40
  6. Step 6: Final answer
    x = 1,777,073.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.