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Finding the Fourth Proportional to 449,495.27, 620,322.33 and 258,508.82

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Solution

The fourth proportional to 449,495.27, 620,322.33 and 258,508.82 is: 356,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,495.27 : 620,322.33 = 258,508.82 : x
  2. Step 2: Convert to fraction form
    449,495.27/620,322.33 = 258,508.82/x
  3. Step 3: Cross multiply
    449,495.27x = 620,322.33 × 258,508.82
  4. Step 4: Simplify right side
    449,495.27x = 160,358,790,446.34
  5. Step 5: Solve for x
    x = 160,358,790,446.34/449,495.27
  6. Step 6: Final answer
    x = 356,753.01

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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.