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Finding the Fourth Proportional to 509,646.20, 703,250.66 and 280,165.64

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Solution

The fourth proportional to 509,646.20, 703,250.66 and 280,165.64 is: 386,595.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,646.20 : 703,250.66 = 280,165.64 : x
  2. Step 2: Convert to fraction form
    509,646.20/703,250.66 = 280,165.64/x
  3. Step 3: Cross multiply
    509,646.20x = 703,250.66 × 280,165.64
  4. Step 4: Simplify right side
    509,646.20x = 197,026,671,239.32
  5. Step 5: Solve for x
    x = 197,026,671,239.32/509,646.20
  6. Step 6: Final answer
    x = 386,595.00

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