Home / 639,157.06-958,736.96-259,810.06

Finding the Fourth Proportional to 639,157.06, 958,736.96 and 259,810.06

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Solution

The fourth proportional to 639,157.06, 958,736.96 and 259,810.06 is: 389,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,157.06 : 958,736.96 = 259,810.06 : x
  2. Step 2: Convert to fraction form
    639,157.06/958,736.96 = 259,810.06/x
  3. Step 3: Cross multiply
    639,157.06x = 958,736.96 × 259,810.06
  4. Step 4: Simplify right side
    639,157.06x = 249,089,505,802.77
  5. Step 5: Solve for x
    x = 249,089,505,802.77/639,157.06
  6. Step 6: Final answer
    x = 389,715.64

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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.