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Finding the Fourth Proportional to 549,805.20, 824,227.80 and 213,075.60

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Solution

The fourth proportional to 549,805.20, 824,227.80 and 213,075.60 is: 319,427.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,805.20 : 824,227.80 = 213,075.60 : x
  2. Step 2: Convert to fraction form
    549,805.20/824,227.80 = 213,075.60/x
  3. Step 3: Cross multiply
    549,805.20x = 824,227.80 × 213,075.60
  4. Step 4: Simplify right side
    549,805.20x = 175,622,833,021.68
  5. Step 5: Solve for x
    x = 175,622,833,021.68/549,805.20
  6. Step 6: Final answer
    x = 319,427.38

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