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Finding the Fourth Proportional to 662,317.66, 993,485.81 and 189,003.07

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Solution

The fourth proportional to 662,317.66, 993,485.81 and 189,003.07 is: 283,507.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,317.66 : 993,485.81 = 189,003.07 : x
  2. Step 2: Convert to fraction form
    662,317.66/993,485.81 = 189,003.07/x
  3. Step 3: Cross multiply
    662,317.66x = 993,485.81 × 189,003.07
  4. Step 4: Simplify right side
    662,317.66x = 187,771,868,091.44
  5. Step 5: Solve for x
    x = 187,771,868,091.44/662,317.66
  6. Step 6: Final answer
    x = 283,507.26

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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.