Home / 691,879.10-1,037,721.45-218,612.30

Finding the Fourth Proportional to 691,879.10, 1,037,721.45 and 218,612.30

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Solution

The fourth proportional to 691,879.10, 1,037,721.45 and 218,612.30 is: 327,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,879.10 : 1,037,721.45 = 218,612.30 : x
  2. Step 2: Convert to fraction form
    691,879.10/1,037,721.45 = 218,612.30/x
  3. Step 3: Cross multiply
    691,879.10x = 1,037,721.45 × 218,612.30
  4. Step 4: Simplify right side
    691,879.10x = 226,858,672,943.84
  5. Step 5: Solve for x
    x = 226,858,672,943.84/691,879.10
  6. Step 6: Final answer
    x = 327,887.74

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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.