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Finding the Fourth Proportional to 978,511.32, 1,465,856.88 and 674,187.48

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Solution

The fourth proportional to 978,511.32, 1,465,856.88 and 674,187.48 is: 1,009,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,511.32 : 1,465,856.88 = 674,187.48 : x
  2. Step 2: Convert to fraction form
    978,511.32/1,465,856.88 = 674,187.48/x
  3. Step 3: Cross multiply
    978,511.32x = 1,465,856.88 × 674,187.48
  4. Step 4: Simplify right side
    978,511.32x = 988,262,355,967.86
  5. Step 5: Solve for x
    x = 988,262,355,967.86/978,511.32
  6. Step 6: Final answer
    x = 1,009,965.17

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