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Finding the Fourth Proportional to 486,647.29, 666,695.64 and 468,453.34

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Solution

The fourth proportional to 486,647.29, 666,695.64 and 468,453.34 is: 641,770.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,647.29 : 666,695.64 = 468,453.34 : x
  2. Step 2: Convert to fraction form
    486,647.29/666,695.64 = 468,453.34/x
  3. Step 3: Cross multiply
    486,647.29x = 666,695.64 × 468,453.34
  4. Step 4: Simplify right side
    486,647.29x = 312,315,799,321.44
  5. Step 5: Solve for x
    x = 312,315,799,321.44/486,647.29
  6. Step 6: Final answer
    x = 641,770.35

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.