Finding the Fourth Proportional to 2,390,450.75, 3,298,822.11 and 1,317,362.75
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Solution
The fourth proportional to 2,390,450.75, 3,298,822.11 and 1,317,362.75 is: 1,817,960.63
Step by Step Solution
- Step 1: Write the proportion equation
2,390,450.75 : 3,298,822.11 = 1,317,362.75 : x - Step 2: Convert to fraction form
2,390,450.75/3,298,822.11 = 1,317,362.75/x - Step 3: Cross multiply
2,390,450.75x = 3,298,822.11 × 1,317,362.75 - Step 4: Simplify right side
2,390,450.75x = 4,345,745,360,003.59 - Step 5: Solve for x
x = 4,345,745,360,003.59/2,390,450.75 - Step 6: Final answer
x = 1,817,960.63
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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.