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Finding the Fourth Proportional to 515,624.52, 711,390.96 and 311,737.80

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Solution

The fourth proportional to 515,624.52, 711,390.96 and 311,737.80 is: 430,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,624.52 : 711,390.96 = 311,737.80 : x
  2. Step 2: Convert to fraction form
    515,624.52/711,390.96 = 311,737.80/x
  3. Step 3: Cross multiply
    515,624.52x = 711,390.96 × 311,737.80
  4. Step 4: Simplify right side
    515,624.52x = 221,767,452,810.29
  5. Step 5: Solve for x
    x = 221,767,452,810.29/515,624.52
  6. Step 6: Final answer
    x = 430,094.85

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