Home / 749,211-1,123,817.58-305,979

Finding the Fourth Proportional to 749,211, 1,123,817.58 and 305,979

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Solution

The fourth proportional to 749,211, 1,123,817.58 and 305,979 is: 458,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,211 : 1,123,817.58 = 305,979 : x
  2. Step 2: Convert to fraction form
    749,211/1,123,817.58 = 305,979/x
  3. Step 3: Cross multiply
    749,211x = 1,123,817.58 × 305,979
  4. Step 4: Simplify right side
    749,211x = 343,864,579,310.82
  5. Step 5: Solve for x
    x = 343,864,579,310.82/749,211
  6. Step 6: Final answer
    x = 458,968.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.