Home / 1,485,129.75-2,227,337.82-685,643.19

Finding the Fourth Proportional to 1,485,129.75, 2,227,337.82 and 685,643.19

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Solution

The fourth proportional to 1,485,129.75, 2,227,337.82 and 685,643.19 is: 1,028,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,129.75 : 2,227,337.82 = 685,643.19 : x
  2. Step 2: Convert to fraction form
    1,485,129.75/2,227,337.82 = 685,643.19/x
  3. Step 3: Cross multiply
    1,485,129.75x = 2,227,337.82 × 685,643.19
  4. Step 4: Simplify right side
    1,485,129.75x = 1,527,159,008,112.45
  5. Step 5: Solve for x
    x = 1,527,159,008,112.45/1,485,129.75
  6. Step 6: Final answer
    x = 1,028,300.06

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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.