Home / 1,225,895.82-1,691,969.23-767,223.60

Finding the Fourth Proportional to 1,225,895.82, 1,691,969.23 and 767,223.60

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Solution

The fourth proportional to 1,225,895.82, 1,691,969.23 and 767,223.60 is: 1,058,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,895.82 : 1,691,969.23 = 767,223.60 : x
  2. Step 2: Convert to fraction form
    1,225,895.82/1,691,969.23 = 767,223.60/x
  3. Step 3: Cross multiply
    1,225,895.82x = 1,691,969.23 × 767,223.60
  4. Step 4: Simplify right side
    1,225,895.82x = 1,298,118,723,729.83
  5. Step 5: Solve for x
    x = 1,298,118,723,729.83/1,225,895.82
  6. Step 6: Final answer
    x = 1,058,914.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.