Home / 1,318,879.10-1,978,837.05-520,024.70

Finding the Fourth Proportional to 1,318,879.10, 1,978,837.05 and 520,024.70

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Solution

The fourth proportional to 1,318,879.10, 1,978,837.05 and 520,024.70 is: 780,241.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,879.10 : 1,978,837.05 = 520,024.70 : x
  2. Step 2: Convert to fraction form
    1,318,879.10/1,978,837.05 = 520,024.70/x
  3. Step 3: Cross multiply
    1,318,879.10x = 1,978,837.05 × 520,024.70
  4. Step 4: Simplify right side
    1,318,879.10x = 1,029,044,143,275.14
  5. Step 5: Solve for x
    x = 1,029,044,143,275.14/1,318,879.10
  6. Step 6: Final answer
    x = 780,241.45

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