Home / 631,408.18-947,120.48-210,684.06

Finding the Fourth Proportional to 631,408.18, 947,120.48 and 210,684.06

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Solution

The fourth proportional to 631,408.18, 947,120.48 and 210,684.06 is: 316,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,408.18 : 947,120.48 = 210,684.06 : x
  2. Step 2: Convert to fraction form
    631,408.18/947,120.48 = 210,684.06/x
  3. Step 3: Cross multiply
    631,408.18x = 947,120.48 × 210,684.06
  4. Step 4: Simplify right side
    631,408.18x = 199,543,188,035.55
  5. Step 5: Solve for x
    x = 199,543,188,035.55/631,408.18
  6. Step 6: Final answer
    x = 316,028.83

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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.