Home / 1,434,056.81-1,978,921.23-822,179.77

Finding the Fourth Proportional to 1,434,056.81, 1,978,921.23 and 822,179.77

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Solution

The fourth proportional to 1,434,056.81, 1,978,921.23 and 822,179.77 is: 1,134,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,056.81 : 1,978,921.23 = 822,179.77 : x
  2. Step 2: Convert to fraction form
    1,434,056.81/1,978,921.23 = 822,179.77/x
  3. Step 3: Cross multiply
    1,434,056.81x = 1,978,921.23 × 822,179.77
  4. Step 4: Simplify right side
    1,434,056.81x = 1,627,028,993,699.04
  5. Step 5: Solve for x
    x = 1,627,028,993,699.04/1,434,056.81
  6. Step 6: Final answer
    x = 1,134,563.84

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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.