Home / 1,515,225.90-2,090,979.51-826,874.94

Finding the Fourth Proportional to 1,515,225.90, 2,090,979.51 and 826,874.94

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Solution

The fourth proportional to 1,515,225.90, 2,090,979.51 and 826,874.94 is: 1,141,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,225.90 : 2,090,979.51 = 826,874.94 : x
  2. Step 2: Convert to fraction form
    1,515,225.90/2,090,979.51 = 826,874.94/x
  3. Step 3: Cross multiply
    1,515,225.90x = 2,090,979.51 × 826,874.94
  4. Step 4: Simplify right side
    1,515,225.90x = 1,728,978,556,872.48
  5. Step 5: Solve for x
    x = 1,728,978,556,872.48/1,515,225.90
  6. Step 6: Final answer
    x = 1,141,069.83

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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.