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Finding the Fourth Proportional to 486,646.29, 666,694.28 and 468,452.34

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Solution

The fourth proportional to 486,646.29, 666,694.28 and 468,452.34 is: 641,768.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,646.29 : 666,694.28 = 468,452.34 : x
  2. Step 2: Convert to fraction form
    486,646.29/666,694.28 = 468,452.34/x
  3. Step 3: Cross multiply
    486,646.29x = 666,694.28 × 468,452.34
  4. Step 4: Simplify right side
    486,646.29x = 312,314,493,188.35
  5. Step 5: Solve for x
    x = 312,314,493,188.35/486,646.29
  6. Step 6: Final answer
    x = 641,768.98

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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.