Home / 386,584.35-580,157.49-291,931.59

Finding the Fourth Proportional to 386,584.35, 580,157.49 and 291,931.59

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Solution

The fourth proportional to 386,584.35, 580,157.49 and 291,931.59 is: 438,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,584.35 : 580,157.49 = 291,931.59 : x
  2. Step 2: Convert to fraction form
    386,584.35/580,157.49 = 291,931.59/x
  3. Step 3: Cross multiply
    386,584.35x = 580,157.49 × 291,931.59
  4. Step 4: Simplify right side
    386,584.35x = 169,366,300,134.33
  5. Step 5: Solve for x
    x = 169,366,300,134.33/386,584.35
  6. Step 6: Final answer
    x = 438,109.57

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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.