Home / 1,216,972.80-1,679,544.72-673,149.60

Finding the Fourth Proportional to 1,216,972.80, 1,679,544.72 and 673,149.60

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Solution

The fourth proportional to 1,216,972.80, 1,679,544.72 and 673,149.60 is: 929,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,972.80 : 1,679,544.72 = 673,149.60 : x
  2. Step 2: Convert to fraction form
    1,216,972.80/1,679,544.72 = 673,149.60/x
  3. Step 3: Cross multiply
    1,216,972.80x = 1,679,544.72 × 673,149.60
  4. Step 4: Simplify right side
    1,216,972.80x = 1,130,584,856,450.11
  5. Step 5: Solve for x
    x = 1,130,584,856,450.11/1,216,972.80
  6. Step 6: Final answer
    x = 929,014.07

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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.