Home / 2,131,348.92-3,194,868.72-917,717.01

Finding the Fourth Proportional to 2,131,348.92, 3,194,868.72 and 917,717.01

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Solution

The fourth proportional to 2,131,348.92, 3,194,868.72 and 917,717.01 is: 1,375,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,348.92 : 3,194,868.72 = 917,717.01 : x
  2. Step 2: Convert to fraction form
    2,131,348.92/3,194,868.72 = 917,717.01/x
  3. Step 3: Cross multiply
    2,131,348.92x = 3,194,868.72 × 917,717.01
  4. Step 4: Simplify right side
    2,131,348.92x = 2,931,985,387,478.31
  5. Step 5: Solve for x
    x = 2,931,985,387,478.31/2,131,348.92
  6. Step 6: Final answer
    x = 1,375,647.77

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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.