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Finding the Fourth Proportional to 628,679.95, 942,451.36 and 229,227.32

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Solution

The fourth proportional to 628,679.95, 942,451.36 and 229,227.32 is: 343,633.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,679.95 : 942,451.36 = 229,227.32 : x
  2. Step 2: Convert to fraction form
    628,679.95/942,451.36 = 229,227.32/x
  3. Step 3: Cross multiply
    628,679.95x = 942,451.36 × 229,227.32
  4. Step 4: Simplify right side
    628,679.95x = 216,035,601,266.22
  5. Step 5: Solve for x
    x = 216,035,601,266.22/628,679.95
  6. Step 6: Final answer
    x = 343,633.67

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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.