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Finding the Fourth Proportional to 620,918.84, 931,474.92 and 200,237.24

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Solution

The fourth proportional to 620,918.84, 931,474.92 and 200,237.24 is: 300,387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,918.84 : 931,474.92 = 200,237.24 : x
  2. Step 2: Convert to fraction form
    620,918.84/931,474.92 = 200,237.24/x
  3. Step 3: Cross multiply
    620,918.84x = 931,474.92 × 200,237.24
  4. Step 4: Simplify right side
    620,918.84x = 186,515,967,110.02
  5. Step 5: Solve for x
    x = 186,515,967,110.02/620,918.84
  6. Step 6: Final answer
    x = 300,387.03

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Why These Related Problems?

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