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Finding the Fourth Proportional to 398,481.60, 595,972.80 and 304,003.20

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Solution

The fourth proportional to 398,481.60, 595,972.80 and 304,003.20 is: 454,670.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,481.60 : 595,972.80 = 304,003.20 : x
  2. Step 2: Convert to fraction form
    398,481.60/595,972.80 = 304,003.20/x
  3. Step 3: Cross multiply
    398,481.60x = 595,972.80 × 304,003.20
  4. Step 4: Simplify right side
    398,481.60x = 181,177,638,312.96
  5. Step 5: Solve for x
    x = 181,177,638,312.96/398,481.60
  6. Step 6: Final answer
    x = 454,670.02

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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.