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Finding the Fourth Proportional to 972,001.20, 1,457,368.20 and 872,468.40

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Solution

The fourth proportional to 972,001.20, 1,457,368.20 and 872,468.40 is: 1,308,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,001.20 : 1,457,368.20 = 872,468.40 : x
  2. Step 2: Convert to fraction form
    972,001.20/1,457,368.20 = 872,468.40/x
  3. Step 3: Cross multiply
    972,001.20x = 1,457,368.20 × 872,468.40
  4. Step 4: Simplify right side
    972,001.20x = 1,271,507,701,664.88
  5. Step 5: Solve for x
    x = 1,271,507,701,664.88/972,001.20
  6. Step 6: Final answer
    x = 1,308,133.88

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