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Finding the Fourth Proportional to 449,750.30, 620,595.43 and 288,823.32

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Solution

The fourth proportional to 449,750.30, 620,595.43 and 288,823.32 is: 398,537.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,750.30 : 620,595.43 = 288,823.32 : x
  2. Step 2: Convert to fraction form
    449,750.30/620,595.43 = 288,823.32/x
  3. Step 3: Cross multiply
    449,750.30x = 620,595.43 × 288,823.32
  4. Step 4: Simplify right side
    449,750.30x = 179,242,431,747.37
  5. Step 5: Solve for x
    x = 179,242,431,747.37/449,750.30
  6. Step 6: Final answer
    x = 398,537.66

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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.