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Finding the Fourth Proportional to 706,075.20, 1,059,112.80 and 648,014.40

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Solution

The fourth proportional to 706,075.20, 1,059,112.80 and 648,014.40 is: 972,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,075.20 : 1,059,112.80 = 648,014.40 : x
  2. Step 2: Convert to fraction form
    706,075.20/1,059,112.80 = 648,014.40/x
  3. Step 3: Cross multiply
    706,075.20x = 1,059,112.80 × 648,014.40
  4. Step 4: Simplify right side
    706,075.20x = 686,320,345,624.32
  5. Step 5: Solve for x
    x = 686,320,345,624.32/706,075.20
  6. Step 6: Final answer
    x = 972,021.60

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