Home / 1,442,770.90-1,991,043.54-899,126.44

Finding the Fourth Proportional to 1,442,770.90, 1,991,043.54 and 899,126.44

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Solution

The fourth proportional to 1,442,770.90, 1,991,043.54 and 899,126.44 is: 1,240,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,770.90 : 1,991,043.54 = 899,126.44 : x
  2. Step 2: Convert to fraction form
    1,442,770.90/1,991,043.54 = 899,126.44/x
  3. Step 3: Cross multiply
    1,442,770.90x = 1,991,043.54 × 899,126.44
  4. Step 4: Simplify right side
    1,442,770.90x = 1,790,199,890,005.20
  5. Step 5: Solve for x
    x = 1,790,199,890,005.20/1,442,770.90
  6. Step 6: Final answer
    x = 1,240,806.76

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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.