Home / 1,442,769.90-1,991,042.16-899,125.44

Finding the Fourth Proportional to 1,442,769.90, 1,991,042.16 and 899,125.44

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Solution

The fourth proportional to 1,442,769.90, 1,991,042.16 and 899,125.44 is: 1,240,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,769.90 : 1,991,042.16 = 899,125.44 : x
  2. Step 2: Convert to fraction form
    1,442,769.90/1,991,042.16 = 899,125.44/x
  3. Step 3: Cross multiply
    1,442,769.90x = 1,991,042.16 × 899,125.44
  4. Step 4: Simplify right side
    1,442,769.90x = 1,790,196,658,168.55
  5. Step 5: Solve for x
    x = 1,790,196,658,168.55/1,442,769.90
  6. Step 6: Final answer
    x = 1,240,805.38

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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.