Home / 685,343.52-1,028,125.44-235,953.90

Finding the Fourth Proportional to 685,343.52, 1,028,125.44 and 235,953.90

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Solution

The fourth proportional to 685,343.52, 1,028,125.44 and 235,953.90 is: 353,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,343.52 : 1,028,125.44 = 235,953.90 : x
  2. Step 2: Convert to fraction form
    685,343.52/1,028,125.44 = 235,953.90/x
  3. Step 3: Cross multiply
    685,343.52x = 1,028,125.44 × 235,953.90
  4. Step 4: Simplify right side
    685,343.52x = 242,590,207,257.22
  5. Step 5: Solve for x
    x = 242,590,207,257.22/685,343.52
  6. Step 6: Final answer
    x = 353,968.78

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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.