Finding the Fourth Proportional to 3,998,811.11, 5,998,233.47 and 1,266,372.50
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Solution
The fourth proportional to 3,998,811.11, 5,998,233.47 and 1,266,372.50 is: 1,899,564.07
Step by Step Solution
- Step 1: Write the proportion equation
3,998,811.11 : 5,998,233.47 = 1,266,372.50 : x - Step 2: Convert to fraction form
3,998,811.11/5,998,233.47 = 1,266,372.50/x - Step 3: Cross multiply
3,998,811.11x = 5,998,233.47 × 1,266,372.50 - Step 4: Simplify right side
3,998,811.11x = 7,595,997,878,664.55 - Step 5: Solve for x
x = 7,595,997,878,664.55/3,998,811.11 - Step 6: Final answer
x = 1,899,564.07
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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.