Home / 902,147.63-1,244,963.72-499,739.63

Finding the Fourth Proportional to 902,147.63, 1,244,963.72 and 499,739.63

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Solution

The fourth proportional to 902,147.63, 1,244,963.72 and 499,739.63 is: 689,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,147.63 : 1,244,963.72 = 499,739.63 : x
  2. Step 2: Convert to fraction form
    902,147.63/1,244,963.72 = 499,739.63/x
  3. Step 3: Cross multiply
    902,147.63x = 1,244,963.72 × 499,739.63
  4. Step 4: Simplify right side
    902,147.63x = 622,157,703,820.75
  5. Step 5: Solve for x
    x = 622,157,703,820.75/902,147.63
  6. Step 6: Final answer
    x = 689,640.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.