Home / 697,720.29-1,045,179.15-318,118.85

Finding the Fourth Proportional to 697,720.29, 1,045,179.15 and 318,118.85

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Solution

The fourth proportional to 697,720.29, 1,045,179.15 and 318,118.85 is: 476,539.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,720.29 : 1,045,179.15 = 318,118.85 : x
  2. Step 2: Convert to fraction form
    697,720.29/1,045,179.15 = 318,118.85/x
  3. Step 3: Cross multiply
    697,720.29x = 1,045,179.15 × 318,118.85
  4. Step 4: Simplify right side
    697,720.29x = 332,491,189,241.98
  5. Step 5: Solve for x
    x = 332,491,189,241.98/697,720.29
  6. Step 6: Final answer
    x = 476,539.37

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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.