Home / 379,956.15-524,785.64-303,739.20

Finding the Fourth Proportional to 379,956.15, 524,785.64 and 303,739.20

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Solution

The fourth proportional to 379,956.15, 524,785.64 and 303,739.20 is: 419,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,956.15 : 524,785.64 = 303,739.20 : x
  2. Step 2: Convert to fraction form
    379,956.15/524,785.64 = 303,739.20/x
  3. Step 3: Cross multiply
    379,956.15x = 524,785.64 × 303,739.20
  4. Step 4: Simplify right side
    379,956.15x = 159,397,968,946.39
  5. Step 5: Solve for x
    x = 159,397,968,946.39/379,956.15
  6. Step 6: Final answer
    x = 419,516.75

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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.