Home / 1,551,177.05-2,140,753.66-862,978.57

Finding the Fourth Proportional to 1,551,177.05, 2,140,753.66 and 862,978.57

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Solution

The fourth proportional to 1,551,177.05, 2,140,753.66 and 862,978.57 is: 1,190,982.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551,177.05 : 2,140,753.66 = 862,978.57 : x
  2. Step 2: Convert to fraction form
    1,551,177.05/2,140,753.66 = 862,978.57/x
  3. Step 3: Cross multiply
    1,551,177.05x = 2,140,753.66 × 862,978.57
  4. Step 4: Simplify right side
    1,551,177.05x = 1,847,424,536,761.48
  5. Step 5: Solve for x
    x = 1,847,424,536,761.48/1,551,177.05
  6. Step 6: Final answer
    x = 1,190,982.38

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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.