Home / 768,021.72-1,151,653.47-235,414.32

Finding the Fourth Proportional to 768,021.72, 1,151,653.47 and 235,414.32

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Solution

The fourth proportional to 768,021.72, 1,151,653.47 and 235,414.32 is: 353,005.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,021.72 : 1,151,653.47 = 235,414.32 : x
  2. Step 2: Convert to fraction form
    768,021.72/1,151,653.47 = 235,414.32/x
  3. Step 3: Cross multiply
    768,021.72x = 1,151,653.47 × 235,414.32
  4. Step 4: Simplify right side
    768,021.72x = 271,115,718,515.69
  5. Step 5: Solve for x
    x = 271,115,718,515.69/768,021.72
  6. Step 6: Final answer
    x = 353,005.28

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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.