Finding the Fourth Proportional to 1,918,968.36, 2,648,174.94 and 1,103,331.48
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Solution
The fourth proportional to 1,918,968.36, 2,648,174.94 and 1,103,331.48 is: 1,522,596.64
Step by Step Solution
- Step 1: Write the proportion equation
1,918,968.36 : 2,648,174.94 = 1,103,331.48 : x - Step 2: Convert to fraction form
1,918,968.36/2,648,174.94 = 1,103,331.48/x - Step 3: Cross multiply
1,918,968.36x = 2,648,174.94 × 1,103,331.48 - Step 4: Simplify right side
1,918,968.36x = 2,921,814,775,849.11 - Step 5: Solve for x
x = 2,921,814,775,849.11/1,918,968.36 - Step 6: Final answer
x = 1,522,596.64
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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.