Home / 1,028,725.76-1,419,313.48-666,427.32

Finding the Fourth Proportional to 1,028,725.76, 1,419,313.48 and 666,427.32

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Solution

The fourth proportional to 1,028,725.76, 1,419,313.48 and 666,427.32 is: 919,457.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,725.76 : 1,419,313.48 = 666,427.32 : x
  2. Step 2: Convert to fraction form
    1,028,725.76/1,419,313.48 = 666,427.32/x
  3. Step 3: Cross multiply
    1,028,725.76x = 1,419,313.48 × 666,427.32
  4. Step 4: Simplify right side
    1,028,725.76x = 945,869,278,716.27
  5. Step 5: Solve for x
    x = 945,869,278,716.27/1,028,725.76
  6. Step 6: Final answer
    x = 919,457.17

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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.