Home / 1,028,581.92-1,419,113.16-666,283.50

Finding the Fourth Proportional to 1,028,581.92, 1,419,113.16 and 666,283.50

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Solution

The fourth proportional to 1,028,581.92, 1,419,113.16 and 666,283.50 is: 919,257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,581.92 : 1,419,113.16 = 666,283.50 : x
  2. Step 2: Convert to fraction form
    1,028,581.92/1,419,113.16 = 666,283.50/x
  3. Step 3: Cross multiply
    1,028,581.92x = 1,419,113.16 × 666,283.50
  4. Step 4: Simplify right side
    1,028,581.92x = 945,531,683,140.86
  5. Step 5: Solve for x
    x = 945,531,683,140.86/1,028,581.92
  6. Step 6: Final answer
    x = 919,257.54

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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.