Home / 693,104.91-1,039,755.87-213,372.74

Finding the Fourth Proportional to 693,104.91, 1,039,755.87 and 213,372.74

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Solution

The fourth proportional to 693,104.91, 1,039,755.87 and 213,372.74 is: 320,089.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,104.91 : 1,039,755.87 = 213,372.74 : x
  2. Step 2: Convert to fraction form
    693,104.91/1,039,755.87 = 213,372.74/x
  3. Step 3: Cross multiply
    693,104.91x = 1,039,755.87 × 213,372.74
  4. Step 4: Simplify right side
    693,104.91x = 221,855,553,714.20
  5. Step 5: Solve for x
    x = 221,855,553,714.20/693,104.91
  6. Step 6: Final answer
    x = 320,089.43

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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.