Home / 787,260.40-1,181,005.80-413,311.60

Finding the Fourth Proportional to 787,260.40, 1,181,005.80 and 413,311.60

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Solution

The fourth proportional to 787,260.40, 1,181,005.80 and 413,311.60 is: 620,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,260.40 : 1,181,005.80 = 413,311.60 : x
  2. Step 2: Convert to fraction form
    787,260.40/1,181,005.80 = 413,311.60/x
  3. Step 3: Cross multiply
    787,260.40x = 1,181,005.80 × 413,311.60
  4. Step 4: Simplify right side
    787,260.40x = 488,123,396,807.28
  5. Step 5: Solve for x
    x = 488,123,396,807.28/787,260.40
  6. Step 6: Final answer
    x = 620,027.88

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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.