Home / 681,406.48-1,021,334.82-414,578.98

Finding the Fourth Proportional to 681,406.48, 1,021,334.82 and 414,578.98

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Solution

The fourth proportional to 681,406.48, 1,021,334.82 and 414,578.98 is: 621,397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,406.48 : 1,021,334.82 = 414,578.98 : x
  2. Step 2: Convert to fraction form
    681,406.48/1,021,334.82 = 414,578.98/x
  3. Step 3: Cross multiply
    681,406.48x = 1,021,334.82 × 414,578.98
  4. Step 4: Simplify right side
    681,406.48x = 423,423,947,914.08
  5. Step 5: Solve for x
    x = 423,423,947,914.08/681,406.48
  6. Step 6: Final answer
    x = 621,397.01

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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.