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Finding the Fourth Proportional to 609,053.28, 913,640.76 and 209,641.20

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Solution

The fourth proportional to 609,053.28, 913,640.76 and 209,641.20 is: 314,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,053.28 : 913,640.76 = 209,641.20 : x
  2. Step 2: Convert to fraction form
    609,053.28/913,640.76 = 209,641.20/x
  3. Step 3: Cross multiply
    609,053.28x = 913,640.76 × 209,641.20
  4. Step 4: Simplify right side
    609,053.28x = 191,536,745,295.31
  5. Step 5: Solve for x
    x = 191,536,745,295.31/609,053.28
  6. Step 6: Final answer
    x = 314,482.74

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