Home / 1,213,886.72-1,820,584.32-327,215.36

Finding the Fourth Proportional to 1,213,886.72, 1,820,584.32 and 327,215.36

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Solution

The fourth proportional to 1,213,886.72, 1,820,584.32 and 327,215.36 is: 490,756.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,886.72 : 1,820,584.32 = 327,215.36 : x
  2. Step 2: Convert to fraction form
    1,213,886.72/1,820,584.32 = 327,215.36/x
  3. Step 3: Cross multiply
    1,213,886.72x = 1,820,584.32 × 327,215.36
  4. Step 4: Simplify right side
    1,213,886.72x = 595,723,153,679.16
  5. Step 5: Solve for x
    x = 595,723,153,679.16/1,213,886.72
  6. Step 6: Final answer
    x = 490,756.79

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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.