Home / 876,199.80-1,307,961.60-769,911.60

Finding the Fourth Proportional to 876,199.80, 1,307,961.60 and 769,911.60

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Solution

The fourth proportional to 876,199.80, 1,307,961.60 and 769,911.60 is: 1,149,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,199.80 : 1,307,961.60 = 769,911.60 : x
  2. Step 2: Convert to fraction form
    876,199.80/1,307,961.60 = 769,911.60/x
  3. Step 3: Cross multiply
    876,199.80x = 1,307,961.60 × 769,911.60
  4. Step 4: Simplify right side
    876,199.80x = 1,007,014,808,194.56
  5. Step 5: Solve for x
    x = 1,007,014,808,194.56/876,199.80
  6. Step 6: Final answer
    x = 1,149,298.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.