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Finding the Fourth Proportional to 479,796.16, 662,138.40 and 298,615.36

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Solution

The fourth proportional to 479,796.16, 662,138.40 and 298,615.36 is: 412,101.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,796.16 : 662,138.40 = 298,615.36 : x
  2. Step 2: Convert to fraction form
    479,796.16/662,138.40 = 298,615.36/x
  3. Step 3: Cross multiply
    479,796.16x = 662,138.40 × 298,615.36
  4. Step 4: Simplify right side
    479,796.16x = 197,724,696,685.82
  5. Step 5: Solve for x
    x = 197,724,696,685.82/479,796.16
  6. Step 6: Final answer
    x = 412,101.46

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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.