Home / 2,117,322.50-3,174,198.35-918,341.78

Finding the Fourth Proportional to 2,117,322.50, 3,174,198.35 and 918,341.78

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Solution

The fourth proportional to 2,117,322.50, 3,174,198.35 and 918,341.78 is: 1,376,738.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,322.50 : 3,174,198.35 = 918,341.78 : x
  2. Step 2: Convert to fraction form
    2,117,322.50/3,174,198.35 = 918,341.78/x
  3. Step 3: Cross multiply
    2,117,322.50x = 3,174,198.35 × 918,341.78
  4. Step 4: Simplify right side
    2,117,322.50x = 2,914,998,942,349.36
  5. Step 5: Solve for x
    x = 2,914,998,942,349.36/2,117,322.50
  6. Step 6: Final answer
    x = 1,376,738.29

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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.