Home / 691,821.71-1,037,882.92-212,051.32

Finding the Fourth Proportional to 691,821.71, 1,037,882.92 and 212,051.32

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Solution

The fourth proportional to 691,821.71, 1,037,882.92 and 212,051.32 is: 318,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,821.71 : 1,037,882.92 = 212,051.32 : x
  2. Step 2: Convert to fraction form
    691,821.71/1,037,882.92 = 212,051.32/x
  3. Step 3: Cross multiply
    691,821.71x = 1,037,882.92 × 212,051.32
  4. Step 4: Simplify right side
    691,821.71x = 220,084,440,464.22
  5. Step 5: Solve for x
    x = 220,084,440,464.22/691,821.71
  6. Step 6: Final answer
    x = 318,123.06

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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.