Home / 1,213,771.96-1,821,182.82-465,643

Finding the Fourth Proportional to 1,213,771.96, 1,821,182.82 and 465,643

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Solution

The fourth proportional to 1,213,771.96, 1,821,182.82 and 465,643 is: 698,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,771.96 : 1,821,182.82 = 465,643 : x
  2. Step 2: Convert to fraction form
    1,213,771.96/1,821,182.82 = 465,643/x
  3. Step 3: Cross multiply
    1,213,771.96x = 1,821,182.82 × 465,643
  4. Step 4: Simplify right side
    1,213,771.96x = 848,021,031,853.26
  5. Step 5: Solve for x
    x = 848,021,031,853.26/1,213,771.96
  6. Step 6: Final answer
    x = 698,665.86

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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.