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Finding the Fourth Proportional to 570,120.32, 855,309.92 and 303,740.48

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Solution

The fourth proportional to 570,120.32, 855,309.92 and 303,740.48 is: 455,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,120.32 : 855,309.92 = 303,740.48 : x
  2. Step 2: Convert to fraction form
    570,120.32/855,309.92 = 303,740.48/x
  3. Step 3: Cross multiply
    570,120.32x = 855,309.92 × 303,740.48
  4. Step 4: Simplify right side
    570,120.32x = 259,792,245,649.56
  5. Step 5: Solve for x
    x = 259,792,245,649.56/570,120.32
  6. Step 6: Final answer
    x = 455,679.68

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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.