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Finding the Fourth Proportional to 449,889.62, 620,848.92 and 245,943

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Solution

The fourth proportional to 449,889.62, 620,848.92 and 245,943 is: 339,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,889.62 : 620,848.92 = 245,943 : x
  2. Step 2: Convert to fraction form
    449,889.62/620,848.92 = 245,943/x
  3. Step 3: Cross multiply
    449,889.62x = 620,848.92 × 245,943
  4. Step 4: Simplify right side
    449,889.62x = 152,693,445,931.56
  5. Step 5: Solve for x
    x = 152,693,445,931.56/449,889.62
  6. Step 6: Final answer
    x = 339,402.02

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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.