Home / 902,399.28-1,351,759.08-427,644.72

Finding the Fourth Proportional to 902,399.28, 1,351,759.08 and 427,644.72

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Solution

The fourth proportional to 902,399.28, 1,351,759.08 and 427,644.72 is: 640,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,399.28 : 1,351,759.08 = 427,644.72 : x
  2. Step 2: Convert to fraction form
    902,399.28/1,351,759.08 = 427,644.72/x
  3. Step 3: Cross multiply
    902,399.28x = 1,351,759.08 × 427,644.72
  4. Step 4: Simplify right side
    902,399.28x = 578,072,633,274.06
  5. Step 5: Solve for x
    x = 578,072,633,274.06/902,399.28
  6. Step 6: Final answer
    x = 640,595.18

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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.