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Finding the Fourth Proportional to 450,703.50, 621,788.67 and 259,614.54

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Solution

The fourth proportional to 450,703.50, 621,788.67 and 259,614.54 is: 358,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,703.50 : 621,788.67 = 259,614.54 : x
  2. Step 2: Convert to fraction form
    450,703.50/621,788.67 = 259,614.54/x
  3. Step 3: Cross multiply
    450,703.50x = 621,788.67 × 259,614.54
  4. Step 4: Simplify right side
    450,703.50x = 161,425,379,539.26
  5. Step 5: Solve for x
    x = 161,425,379,539.26/450,703.50
  6. Step 6: Final answer
    x = 358,163.14

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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.