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Finding the Fourth Proportional to 1,796,789.60, 2,695,184.40 and 1,290,280.40

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Solution

The fourth proportional to 1,796,789.60, 2,695,184.40 and 1,290,280.40 is: 1,935,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796,789.60 : 2,695,184.40 = 1,290,280.40 : x
  2. Step 2: Convert to fraction form
    1,796,789.60/2,695,184.40 = 1,290,280.40/x
  3. Step 3: Cross multiply
    1,796,789.60x = 2,695,184.40 × 1,290,280.40
  4. Step 4: Simplify right side
    1,796,789.60x = 3,477,543,605,705.76
  5. Step 5: Solve for x
    x = 3,477,543,605,705.76/1,796,789.60
  6. Step 6: Final answer
    x = 1,935,420.60

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