Home / 1,020,399.20-1,529,286.60-620,615.60

Finding the Fourth Proportional to 1,020,399.20, 1,529,286.60 and 620,615.60

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Solution

The fourth proportional to 1,020,399.20, 1,529,286.60 and 620,615.60 is: 930,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,399.20 : 1,529,286.60 = 620,615.60 : x
  2. Step 2: Convert to fraction form
    1,020,399.20/1,529,286.60 = 620,615.60/x
  3. Step 3: Cross multiply
    1,020,399.20x = 1,529,286.60 × 620,615.60
  4. Step 4: Simplify right side
    1,020,399.20x = 949,099,120,830.96
  5. Step 5: Solve for x
    x = 949,099,120,830.96/1,020,399.20
  6. Step 6: Final answer
    x = 930,125.31

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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.