Home / 1,319,729.80-1,978,792.80-520,089.70

Finding the Fourth Proportional to 1,319,729.80, 1,978,792.80 and 520,089.70

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Solution

The fourth proportional to 1,319,729.80, 1,978,792.80 and 520,089.70 is: 779,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,729.80 : 1,978,792.80 = 520,089.70 : x
  2. Step 2: Convert to fraction form
    1,319,729.80/1,978,792.80 = 520,089.70/x
  3. Step 3: Cross multiply
    1,319,729.80x = 1,978,792.80 × 520,089.70
  4. Step 4: Simplify right side
    1,319,729.80x = 1,029,149,753,714.16
  5. Step 5: Solve for x
    x = 1,029,149,753,714.16/1,319,729.80
  6. Step 6: Final answer
    x = 779,818.53

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