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Finding the Fourth Proportional to 978,981.60, 1,468,472.40 and 579,416.70

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Solution

The fourth proportional to 978,981.60, 1,468,472.40 and 579,416.70 is: 869,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,981.60 : 1,468,472.40 = 579,416.70 : x
  2. Step 2: Convert to fraction form
    978,981.60/1,468,472.40 = 579,416.70/x
  3. Step 3: Cross multiply
    978,981.60x = 1,468,472.40 × 579,416.70
  4. Step 4: Simplify right side
    978,981.60x = 850,857,432,049.08
  5. Step 5: Solve for x
    x = 850,857,432,049.08/978,981.60
  6. Step 6: Final answer
    x = 869,125.05

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