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Finding the Fourth Proportional to 702,992.96, 970,131.24 and 380,703.56

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Solution

The fourth proportional to 702,992.96, 970,131.24 and 380,703.56 is: 525,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,992.96 : 970,131.24 = 380,703.56 : x
  2. Step 2: Convert to fraction form
    702,992.96/970,131.24 = 380,703.56/x
  3. Step 3: Cross multiply
    702,992.96x = 970,131.24 × 380,703.56
  4. Step 4: Simplify right side
    702,992.96x = 369,332,416,735.21
  5. Step 5: Solve for x
    x = 369,332,416,735.21/702,992.96
  6. Step 6: Final answer
    x = 525,371.43

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1.5x scale

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.