Home / 398,935.32-598,515.57-162,447.72

Finding the Fourth Proportional to 398,935.32, 598,515.57 and 162,447.72

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Solution

The fourth proportional to 398,935.32, 598,515.57 and 162,447.72 is: 243,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,935.32 : 598,515.57 = 162,447.72 : x
  2. Step 2: Convert to fraction form
    398,935.32/598,515.57 = 162,447.72/x
  3. Step 3: Cross multiply
    398,935.32x = 598,515.57 × 162,447.72
  4. Step 4: Simplify right side
    398,935.32x = 97,227,489,731.00
  5. Step 5: Solve for x
    x = 97,227,489,731.00/398,935.32
  6. Step 6: Final answer
    x = 243,717.43

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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.