Home / 628,170.90-941,881.82-426,015.55

Finding the Fourth Proportional to 628,170.90, 941,881.82 and 426,015.55

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Solution

The fourth proportional to 628,170.90, 941,881.82 and 426,015.55 is: 638,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,170.90 : 941,881.82 = 426,015.55 : x
  2. Step 2: Convert to fraction form
    628,170.90/941,881.82 = 426,015.55/x
  3. Step 3: Cross multiply
    628,170.90x = 941,881.82 × 426,015.55
  4. Step 4: Simplify right side
    628,170.90x = 401,256,303,025.91
  5. Step 5: Solve for x
    x = 401,256,303,025.91/628,170.90
  6. Step 6: Final answer
    x = 638,769.33

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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.