Finding the Fourth Proportional to 2,997,615.22, 4,136,701.78 and 1,690,862.88
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Solution
The fourth proportional to 2,997,615.22, 4,136,701.78 and 1,690,862.88 is: 2,333,386.70
Step by Step Solution
- Step 1: Write the proportion equation
2,997,615.22 : 4,136,701.78 = 1,690,862.88 : x - Step 2: Convert to fraction form
2,997,615.22/4,136,701.78 = 1,690,862.88/x - Step 3: Cross multiply
2,997,615.22x = 4,136,701.78 × 1,690,862.88 - Step 4: Simplify right side
2,997,615.22x = 6,994,595,485,431.93 - Step 5: Solve for x
x = 6,994,595,485,431.93/2,997,615.22 - Step 6: Final answer
x = 2,333,386.70
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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.