Home / 1,120,449.65-1,545,779.88-689,982.44

Finding the Fourth Proportional to 1,120,449.65, 1,545,779.88 and 689,982.44

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Solution

The fourth proportional to 1,120,449.65, 1,545,779.88 and 689,982.44 is: 951,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,449.65 : 1,545,779.88 = 689,982.44 : x
  2. Step 2: Convert to fraction form
    1,120,449.65/1,545,779.88 = 689,982.44/x
  3. Step 3: Cross multiply
    1,120,449.65x = 1,545,779.88 × 689,982.44
  4. Step 4: Simplify right side
    1,120,449.65x = 1,066,560,965,576.41
  5. Step 5: Solve for x
    x = 1,066,560,965,576.41/1,120,449.65
  6. Step 6: Final answer
    x = 951,904.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.