Home / 828,779.70-1,243,046.38-229,678.38

Finding the Fourth Proportional to 828,779.70, 1,243,046.38 and 229,678.38

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Solution

The fourth proportional to 828,779.70, 1,243,046.38 and 229,678.38 is: 344,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,779.70 : 1,243,046.38 = 229,678.38 : x
  2. Step 2: Convert to fraction form
    828,779.70/1,243,046.38 = 229,678.38/x
  3. Step 3: Cross multiply
    828,779.70x = 1,243,046.38 × 229,678.38
  4. Step 4: Simplify right side
    828,779.70x = 285,500,878,823.26
  5. Step 5: Solve for x
    x = 285,500,878,823.26/828,779.70
  6. Step 6: Final answer
    x = 344,483.44

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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.