Home / 515,364.90-773,630.55-305,121.30

Finding the Fourth Proportional to 515,364.90, 773,630.55 and 305,121.30

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Solution

The fourth proportional to 515,364.90, 773,630.55 and 305,121.30 is: 458,027.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,364.90 : 773,630.55 = 305,121.30 : x
  2. Step 2: Convert to fraction form
    515,364.90/773,630.55 = 305,121.30/x
  3. Step 3: Cross multiply
    515,364.90x = 773,630.55 × 305,121.30
  4. Step 4: Simplify right side
    515,364.90x = 236,051,159,135.72
  5. Step 5: Solve for x
    x = 236,051,159,135.72/515,364.90
  6. Step 6: Final answer
    x = 458,027.23

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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.