Home / 855,584.72-1,284,638.70-477,244.65

Finding the Fourth Proportional to 855,584.72, 1,284,638.70 and 477,244.65

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Solution

The fourth proportional to 855,584.72, 1,284,638.70 and 477,244.65 is: 716,570.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,584.72 : 1,284,638.70 = 477,244.65 : x
  2. Step 2: Convert to fraction form
    855,584.72/1,284,638.70 = 477,244.65/x
  3. Step 3: Cross multiply
    855,584.72x = 1,284,638.70 × 477,244.65
  4. Step 4: Simplify right side
    855,584.72x = 613,086,946,757.96
  5. Step 5: Solve for x
    x = 613,086,946,757.96/855,584.72
  6. Step 6: Final answer
    x = 716,570.71

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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.