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Finding the Fourth Proportional to 620,999.02, 931,498.53 and 200,274.89

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Solution

The fourth proportional to 620,999.02, 931,498.53 and 200,274.89 is: 300,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,999.02 : 931,498.53 = 200,274.89 : x
  2. Step 2: Convert to fraction form
    620,999.02/931,498.53 = 200,274.89/x
  3. Step 3: Cross multiply
    620,999.02x = 931,498.53 × 200,274.89
  4. Step 4: Simplify right side
    620,999.02x = 186,555,764,629.54
  5. Step 5: Solve for x
    x = 186,555,764,629.54/620,999.02
  6. Step 6: Final answer
    x = 300,412.34

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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.