Home / 432,001.20-648,001.80-290,996.40

Finding the Fourth Proportional to 432,001.20, 648,001.80 and 290,996.40

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Solution

The fourth proportional to 432,001.20, 648,001.80 and 290,996.40 is: 436,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,001.20 : 648,001.80 = 290,996.40 : x
  2. Step 2: Convert to fraction form
    432,001.20/648,001.80 = 290,996.40/x
  3. Step 3: Cross multiply
    432,001.20x = 648,001.80 × 290,996.40
  4. Step 4: Simplify right side
    432,001.20x = 188,566,190,993.52
  5. Step 5: Solve for x
    x = 188,566,190,993.52/432,001.20
  6. Step 6: Final answer
    x = 436,494.60

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