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Finding the Fourth Proportional to 802,086, 1,106,878.68 and 479,809.68

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Solution

The fourth proportional to 802,086, 1,106,878.68 and 479,809.68 is: 662,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,086 : 1,106,878.68 = 479,809.68 : x
  2. Step 2: Convert to fraction form
    802,086/1,106,878.68 = 479,809.68/x
  3. Step 3: Cross multiply
    802,086x = 1,106,878.68 × 479,809.68
  4. Step 4: Simplify right side
    802,086x = 531,091,105,249.62
  5. Step 5: Solve for x
    x = 531,091,105,249.62/802,086
  6. Step 6: Final answer
    x = 662,137.36

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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.