Home / 1,078,114.40-1,617,560.40-447,221.60

Finding the Fourth Proportional to 1,078,114.40, 1,617,560.40 and 447,221.60

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Solution

The fourth proportional to 1,078,114.40, 1,617,560.40 and 447,221.60 is: 670,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,114.40 : 1,617,560.40 = 447,221.60 : x
  2. Step 2: Convert to fraction form
    1,078,114.40/1,617,560.40 = 447,221.60/x
  3. Step 3: Cross multiply
    1,078,114.40x = 1,617,560.40 × 447,221.60
  4. Step 4: Simplify right side
    1,078,114.40x = 723,407,950,184.64
  5. Step 5: Solve for x
    x = 723,407,950,184.64/1,078,114.40
  6. Step 6: Final answer
    x = 670,993.68

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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.