Home / 816,744.72-1,224,317.39-457,091.21

Finding the Fourth Proportional to 816,744.72, 1,224,317.39 and 457,091.21

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Solution

The fourth proportional to 816,744.72, 1,224,317.39 and 457,091.21 is: 685,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,744.72 : 1,224,317.39 = 457,091.21 : x
  2. Step 2: Convert to fraction form
    816,744.72/1,224,317.39 = 457,091.21/x
  3. Step 3: Cross multiply
    816,744.72x = 1,224,317.39 × 457,091.21
  4. Step 4: Simplify right side
    816,744.72x = 559,624,711,097.56
  5. Step 5: Solve for x
    x = 559,624,711,097.56/816,744.72
  6. Step 6: Final answer
    x = 685,189.26

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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.