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Finding the Fourth Proportional to 713,471.20, 1,070,206.80 and 648,152.80

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Solution

The fourth proportional to 713,471.20, 1,070,206.80 and 648,152.80 is: 972,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,471.20 : 1,070,206.80 = 648,152.80 : x
  2. Step 2: Convert to fraction form
    713,471.20/1,070,206.80 = 648,152.80/x
  3. Step 3: Cross multiply
    713,471.20x = 1,070,206.80 × 648,152.80
  4. Step 4: Simplify right side
    713,471.20x = 693,657,533,999.04
  5. Step 5: Solve for x
    x = 693,657,533,999.04/713,471.20
  6. Step 6: Final answer
    x = 972,229.20

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