Home / 1,127,812.28-1,556,237.52-644,408.73

Finding the Fourth Proportional to 1,127,812.28, 1,556,237.52 and 644,408.73

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Solution

The fourth proportional to 1,127,812.28, 1,556,237.52 and 644,408.73 is: 889,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,812.28 : 1,556,237.52 = 644,408.73 : x
  2. Step 2: Convert to fraction form
    1,127,812.28/1,556,237.52 = 644,408.73/x
  3. Step 3: Cross multiply
    1,127,812.28x = 1,556,237.52 × 644,408.73
  4. Step 4: Simplify right side
    1,127,812.28x = 1,002,853,043,841.55
  5. Step 5: Solve for x
    x = 1,002,853,043,841.55/1,127,812.28
  6. Step 6: Final answer
    x = 889,202.10

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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.