Home / 1,214,455.76-1,821,679.80-327,991.76

Finding the Fourth Proportional to 1,214,455.76, 1,821,679.80 and 327,991.76

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Solution

The fourth proportional to 1,214,455.76, 1,821,679.80 and 327,991.76 is: 491,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,455.76 : 1,821,679.80 = 327,991.76 : x
  2. Step 2: Convert to fraction form
    1,214,455.76/1,821,679.80 = 327,991.76/x
  3. Step 3: Cross multiply
    1,214,455.76x = 1,821,679.80 × 327,991.76
  4. Step 4: Simplify right side
    1,214,455.76x = 597,495,963,758.45
  5. Step 5: Solve for x
    x = 597,495,963,758.45/1,214,455.76
  6. Step 6: Final answer
    x = 491,986.60

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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.