Home / 1,213,196.40-1,821,106.80-681,755.40

Finding the Fourth Proportional to 1,213,196.40, 1,821,106.80 and 681,755.40

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Solution

The fourth proportional to 1,213,196.40, 1,821,106.80 and 681,755.40 is: 1,023,370.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,196.40 : 1,821,106.80 = 681,755.40 : x
  2. Step 2: Convert to fraction form
    1,213,196.40/1,821,106.80 = 681,755.40/x
  3. Step 3: Cross multiply
    1,213,196.40x = 1,821,106.80 × 681,755.40
  4. Step 4: Simplify right side
    1,213,196.40x = 1,241,549,394,876.72
  5. Step 5: Solve for x
    x = 1,241,549,394,876.72/1,213,196.40
  6. Step 6: Final answer
    x = 1,023,370.49

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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.