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Finding the Fourth Proportional to 624,174.30, 936,261.45 and 309,246.30

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Solution

The fourth proportional to 624,174.30, 936,261.45 and 309,246.30 is: 463,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,174.30 : 936,261.45 = 309,246.30 : x
  2. Step 2: Convert to fraction form
    624,174.30/936,261.45 = 309,246.30/x
  3. Step 3: Cross multiply
    624,174.30x = 936,261.45 × 309,246.30
  4. Step 4: Simplify right side
    624,174.30x = 289,535,389,245.14
  5. Step 5: Solve for x
    x = 289,535,389,245.14/624,174.30
  6. Step 6: Final answer
    x = 463,869.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.