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Finding the Fourth Proportional to 449,875.98, 620,829 and 245,927.82

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Solution

The fourth proportional to 449,875.98, 620,829 and 245,927.82 is: 339,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,875.98 : 620,829 = 245,927.82 : x
  2. Step 2: Convert to fraction form
    449,875.98/620,829 = 245,927.82/x
  3. Step 3: Cross multiply
    449,875.98x = 620,829 × 245,927.82
  4. Step 4: Simplify right side
    449,875.98x = 152,679,122,562.78
  5. Step 5: Solve for x
    x = 152,679,122,562.78/449,875.98
  6. Step 6: Final answer
    x = 339,380.47

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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.