Finding the Fourth Proportional to 1,168,316.92, 1,612,278.12 and 645,027.96
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Solution
The fourth proportional to 1,168,316.92, 1,612,278.12 and 645,027.96 is: 890,139.01
Step by Step Solution
- Step 1: Write the proportion equation
1,168,316.92 : 1,612,278.12 = 645,027.96 : x - Step 2: Convert to fraction form
1,168,316.92/1,612,278.12 = 645,027.96/x - Step 3: Cross multiply
1,168,316.92x = 1,612,278.12 × 645,027.96 - Step 4: Simplify right side
1,168,316.92x = 1,039,964,462,463.79 - Step 5: Solve for x
x = 1,039,964,462,463.79/1,168,316.92 - Step 6: Final answer
x = 890,139.01
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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.