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Finding the Fourth Proportional to 449,495.22, 620,322.26 and 258,508.76

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Solution

The fourth proportional to 449,495.22, 620,322.26 and 258,508.76 is: 356,752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,495.22 : 620,322.26 = 258,508.76 : x
  2. Step 2: Convert to fraction form
    449,495.22/620,322.26 = 258,508.76/x
  3. Step 3: Cross multiply
    449,495.22x = 620,322.26 × 258,508.76
  4. Step 4: Simplify right side
    449,495.22x = 160,358,733,838.84
  5. Step 5: Solve for x
    x = 160,358,733,838.84/449,495.22
  6. Step 6: Final answer
    x = 356,752.92

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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.