Finding the Fourth Proportional to 2,237,428.17, 3,087,419.49 and 1,257,211.53
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Solution
The fourth proportional to 2,237,428.17, 3,087,419.49 and 1,257,211.53 is: 1,734,821.90
Step by Step Solution
- Step 1: Write the proportion equation
2,237,428.17 : 3,087,419.49 = 1,257,211.53 : x - Step 2: Convert to fraction form
2,237,428.17/3,087,419.49 = 1,257,211.53/x - Step 3: Cross multiply
2,237,428.17x = 3,087,419.49 × 1,257,211.53 - Step 4: Simplify right side
2,237,428.17x = 3,881,539,380,774.72 - Step 5: Solve for x
x = 3,881,539,380,774.72/2,237,428.17 - Step 6: Final answer
x = 1,734,821.90
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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.