Home / 515,327.06-711,152.26-285,877.35

Finding the Fourth Proportional to 515,327.06, 711,152.26 and 285,877.35

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Solution

The fourth proportional to 515,327.06, 711,152.26 and 285,877.35 is: 394,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,327.06 : 711,152.26 = 285,877.35 : x
  2. Step 2: Convert to fraction form
    515,327.06/711,152.26 = 285,877.35/x
  3. Step 3: Cross multiply
    515,327.06x = 711,152.26 × 285,877.35
  4. Step 4: Simplify right side
    515,327.06x = 203,302,322,820.62
  5. Step 5: Solve for x
    x = 203,302,322,820.62/515,327.06
  6. Step 6: Final answer
    x = 394,511.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.