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Finding the Fourth Proportional to 657,520.20, 986,207.40 and 538,984.80

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Solution

The fourth proportional to 657,520.20, 986,207.40 and 538,984.80 is: 808,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,520.20 : 986,207.40 = 538,984.80 : x
  2. Step 2: Convert to fraction form
    657,520.20/986,207.40 = 538,984.80/x
  3. Step 3: Cross multiply
    657,520.20x = 986,207.40 × 538,984.80
  4. Step 4: Simplify right side
    657,520.20x = 531,550,798,247.52
  5. Step 5: Solve for x
    x = 531,550,798,247.52/657,520.20
  6. Step 6: Final answer
    x = 808,417.44

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