Home / 687,081.20-1,030,621.80-308,001.20

Finding the Fourth Proportional to 687,081.20, 1,030,621.80 and 308,001.20

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Solution

The fourth proportional to 687,081.20, 1,030,621.80 and 308,001.20 is: 462,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,081.20 : 1,030,621.80 = 308,001.20 : x
  2. Step 2: Convert to fraction form
    687,081.20/1,030,621.80 = 308,001.20/x
  3. Step 3: Cross multiply
    687,081.20x = 1,030,621.80 × 308,001.20
  4. Step 4: Simplify right side
    687,081.20x = 317,432,751,146.16
  5. Step 5: Solve for x
    x = 317,432,751,146.16/687,081.20
  6. Step 6: Final answer
    x = 462,001.80

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