Home / 1,551,740.86-2,141,388.38-872,662.78

Finding the Fourth Proportional to 1,551,740.86, 2,141,388.38 and 872,662.78

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Solution

The fourth proportional to 1,551,740.86, 2,141,388.38 and 872,662.78 is: 1,204,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551,740.86 : 2,141,388.38 = 872,662.78 : x
  2. Step 2: Convert to fraction form
    1,551,740.86/2,141,388.38 = 872,662.78/x
  3. Step 3: Cross multiply
    1,551,740.86x = 2,141,388.38 × 872,662.78
  4. Step 4: Simplify right side
    1,551,740.86x = 1,868,709,936,750.50
  5. Step 5: Solve for x
    x = 1,868,709,936,750.50/1,551,740.86
  6. Step 6: Final answer
    x = 1,204,266.76

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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.