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Finding the Fourth Proportional to 449,707.33, 620,620.14 and 258,749.83

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Solution

The fourth proportional to 449,707.33, 620,620.14 and 258,749.83 is: 357,088.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,707.33 : 620,620.14 = 258,749.83 : x
  2. Step 2: Convert to fraction form
    449,707.33/620,620.14 = 258,749.83/x
  3. Step 3: Cross multiply
    449,707.33x = 620,620.14 × 258,749.83
  4. Step 4: Simplify right side
    449,707.33x = 160,585,355,719.58
  5. Step 5: Solve for x
    x = 160,585,355,719.58/449,707.33
  6. Step 6: Final answer
    x = 357,088.59

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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.