Finding the Fourth Proportional to 2,781,271.76, 3,837,837.68 and 1,557,407.12
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Solution
The fourth proportional to 2,781,271.76, 3,837,837.68 and 1,557,407.12 is: 2,149,044.12
Step by Step Solution
- Step 1: Write the proportion equation
2,781,271.76 : 3,837,837.68 = 1,557,407.12 : x - Step 2: Convert to fraction form
2,781,271.76/3,837,837.68 = 1,557,407.12/x - Step 3: Cross multiply
2,781,271.76x = 3,837,837.68 × 1,557,407.12 - Step 4: Simplify right side
2,781,271.76x = 5,977,075,728,236.28 - Step 5: Solve for x
x = 5,977,075,728,236.28/2,781,271.76 - Step 6: Final answer
x = 2,149,044.12
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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.