Home / 816,745.72-1,224,318.89-457,092.21

Finding the Fourth Proportional to 816,745.72, 1,224,318.89 and 457,092.21

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Solution

The fourth proportional to 816,745.72, 1,224,318.89 and 457,092.21 is: 685,190.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,745.72 : 1,224,318.89 = 457,092.21 : x
  2. Step 2: Convert to fraction form
    816,745.72/1,224,318.89 = 457,092.21/x
  3. Step 3: Cross multiply
    816,745.72x = 1,224,318.89 × 457,092.21
  4. Step 4: Simplify right side
    816,745.72x = 559,626,621,053.25
  5. Step 5: Solve for x
    x = 559,626,621,053.25/816,745.72
  6. Step 6: Final answer
    x = 685,190.76

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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.