Finding the Fourth Proportional to 1,638,899.68, 2,261,830.08 and 994,483.12
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Solution
The fourth proportional to 1,638,899.68, 2,261,830.08 and 994,483.12 is: 1,372,476.83
Step by Step Solution
- Step 1: Write the proportion equation
1,638,899.68 : 2,261,830.08 = 994,483.12 : x - Step 2: Convert to fraction form
1,638,899.68/2,261,830.08 = 994,483.12/x - Step 3: Cross multiply
1,638,899.68x = 2,261,830.08 × 994,483.12 - Step 4: Simplify right side
1,638,899.68x = 2,249,351,834,868.25 - Step 5: Solve for x
x = 2,249,351,834,868.25/1,638,899.68 - Step 6: Final answer
x = 1,372,476.83
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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.