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Finding the Fourth Proportional to 788,139, 1,087,633.08 and 448,607.25

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Solution

The fourth proportional to 788,139, 1,087,633.08 and 448,607.25 is: 619,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,139 : 1,087,633.08 = 448,607.25 : x
  2. Step 2: Convert to fraction form
    788,139/1,087,633.08 = 448,607.25/x
  3. Step 3: Cross multiply
    788,139x = 1,087,633.08 × 448,607.25
  4. Step 4: Simplify right side
    788,139x = 487,920,085,027.83
  5. Step 5: Solve for x
    x = 487,920,085,027.83/788,139
  6. Step 6: Final answer
    x = 619,078.72

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