Home / 1,225,885.75-1,691,017.88-766,202.55

Finding the Fourth Proportional to 1,225,885.75, 1,691,017.88 and 766,202.55

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Solution

The fourth proportional to 1,225,885.75, 1,691,017.88 and 766,202.55 is: 1,056,919.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,885.75 : 1,691,017.88 = 766,202.55 : x
  2. Step 2: Convert to fraction form
    1,225,885.75/1,691,017.88 = 766,202.55/x
  3. Step 3: Cross multiply
    1,225,885.75x = 1,691,017.88 × 766,202.55
  4. Step 4: Simplify right side
    1,225,885.75x = 1,295,662,211,751.59
  5. Step 5: Solve for x
    x = 1,295,662,211,751.59/1,225,885.75
  6. Step 6: Final answer
    x = 1,056,919.22

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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.