Home / 620,738.20-931,020.90-200,056.60

Finding the Fourth Proportional to 620,738.20, 931,020.90 and 200,056.60

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Solution

The fourth proportional to 620,738.20, 931,020.90 and 200,056.60 is: 300,057.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,738.20 : 931,020.90 = 200,056.60 : x
  2. Step 2: Convert to fraction form
    620,738.20/931,020.90 = 200,056.60/x
  3. Step 3: Cross multiply
    620,738.20x = 931,020.90 × 200,056.60
  4. Step 4: Simplify right side
    620,738.20x = 186,256,875,782.94
  5. Step 5: Solve for x
    x = 186,256,875,782.94/620,738.20
  6. Step 6: Final answer
    x = 300,057.05

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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.