Home / 959,157.72-1,438,425.09-319,289.58

Finding the Fourth Proportional to 959,157.72, 1,438,425.09 and 319,289.58

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Solution

The fourth proportional to 959,157.72, 1,438,425.09 and 319,289.58 is: 478,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,157.72 : 1,438,425.09 = 319,289.58 : x
  2. Step 2: Convert to fraction form
    959,157.72/1,438,425.09 = 319,289.58/x
  3. Step 3: Cross multiply
    959,157.72x = 1,438,425.09 × 319,289.58
  4. Step 4: Simplify right side
    959,157.72x = 459,274,142,847.56
  5. Step 5: Solve for x
    x = 459,274,142,847.56/959,157.72
  6. Step 6: Final answer
    x = 478,830.68

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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.