Home / 1,485,121.79-2,227,325.74-685,635.46

Finding the Fourth Proportional to 1,485,121.79, 2,227,325.74 and 685,635.46

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Solution

The fourth proportional to 1,485,121.79, 2,227,325.74 and 685,635.46 is: 1,028,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,121.79 : 2,227,325.74 = 685,635.46 : x
  2. Step 2: Convert to fraction form
    1,485,121.79/2,227,325.74 = 685,635.46/x
  3. Step 3: Cross multiply
    1,485,121.79x = 2,227,325.74 × 685,635.46
  4. Step 4: Simplify right side
    1,485,121.79x = 1,527,133,508,314.74
  5. Step 5: Solve for x
    x = 1,527,133,508,314.74/1,485,121.79
  6. Step 6: Final answer
    x = 1,028,288.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.