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Finding the Fourth Proportional to 449,597.96, 620,437.95 and 245,644.50

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Solution

The fourth proportional to 449,597.96, 620,437.95 and 245,644.50 is: 338,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,597.96 : 620,437.95 = 245,644.50 : x
  2. Step 2: Convert to fraction form
    449,597.96/620,437.95 = 245,644.50/x
  3. Step 3: Cross multiply
    449,597.96x = 620,437.95 × 245,644.50
  4. Step 4: Simplify right side
    449,597.96x = 152,407,170,008.78
  5. Step 5: Solve for x
    x = 152,407,170,008.78/449,597.96
  6. Step 6: Final answer
    x = 338,985.46

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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.