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Finding the Fourth Proportional to 657,284.63, 907,052.78 and 355,478.63

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Solution

The fourth proportional to 657,284.63, 907,052.78 and 355,478.63 is: 490,560.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,284.63 : 907,052.78 = 355,478.63 : x
  2. Step 2: Convert to fraction form
    657,284.63/907,052.78 = 355,478.63/x
  3. Step 3: Cross multiply
    657,284.63x = 907,052.78 × 355,478.63
  4. Step 4: Simplify right side
    657,284.63x = 322,437,875,925.52
  5. Step 5: Solve for x
    x = 322,437,875,925.52/657,284.63
  6. Step 6: Final answer
    x = 490,560.50

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