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Finding the Fourth Proportional to 557,345.32, 769,183.98 and 315,670.88

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Solution

The fourth proportional to 557,345.32, 769,183.98 and 315,670.88 is: 435,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,345.32 : 769,183.98 = 315,670.88 : x
  2. Step 2: Convert to fraction form
    557,345.32/769,183.98 = 315,670.88/x
  3. Step 3: Cross multiply
    557,345.32x = 769,183.98 × 315,670.88
  4. Step 4: Simplify right side
    557,345.32x = 242,808,983,848.50
  5. Step 5: Solve for x
    x = 242,808,983,848.50/557,345.32
  6. Step 6: Final answer
    x = 435,652.68

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