Home / 1,319,234.20-1,978,851.30-787,355.80

Finding the Fourth Proportional to 1,319,234.20, 1,978,851.30 and 787,355.80

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Solution

The fourth proportional to 1,319,234.20, 1,978,851.30 and 787,355.80 is: 1,181,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,234.20 : 1,978,851.30 = 787,355.80 : x
  2. Step 2: Convert to fraction form
    1,319,234.20/1,978,851.30 = 787,355.80/x
  3. Step 3: Cross multiply
    1,319,234.20x = 1,978,851.30 × 787,355.80
  4. Step 4: Simplify right side
    1,319,234.20x = 1,558,060,048,392.54
  5. Step 5: Solve for x
    x = 1,558,060,048,392.54/1,319,234.20
  6. Step 6: Final answer
    x = 1,181,033.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.