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Finding the Fourth Proportional to 449,490.96, 620,316.37 and 258,504.50

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Solution

The fourth proportional to 449,490.96, 620,316.37 and 258,504.50 is: 356,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,490.96 : 620,316.37 = 258,504.50 : x
  2. Step 2: Convert to fraction form
    449,490.96/620,316.37 = 258,504.50/x
  3. Step 3: Cross multiply
    449,490.96x = 620,316.37 × 258,504.50
  4. Step 4: Simplify right side
    449,490.96x = 160,354,573,068.67
  5. Step 5: Solve for x
    x = 160,354,573,068.67/449,490.96
  6. Step 6: Final answer
    x = 356,747.05

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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.