Home / 1,551,178.05-2,140,755.04-862,979.57

Finding the Fourth Proportional to 1,551,178.05, 2,140,755.04 and 862,979.57

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Solution

The fourth proportional to 1,551,178.05, 2,140,755.04 and 862,979.57 is: 1,190,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551,178.05 : 2,140,755.04 = 862,979.57 : x
  2. Step 2: Convert to fraction form
    1,551,178.05/2,140,755.04 = 862,979.57/x
  3. Step 3: Cross multiply
    1,551,178.05x = 2,140,755.04 × 862,979.57
  4. Step 4: Simplify right side
    1,551,178.05x = 1,847,427,863,894.53
  5. Step 5: Solve for x
    x = 1,847,427,863,894.53/1,551,178.05
  6. Step 6: Final answer
    x = 1,190,983.76

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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.