Finding the Fourth Proportional to 1,645,015.08, 2,270,107.98 and 919,864.20
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Solution
The fourth proportional to 1,645,015.08, 2,270,107.98 and 919,864.20 is: 1,269,405.42
Step by Step Solution
- Step 1: Write the proportion equation
1,645,015.08 : 2,270,107.98 = 919,864.20 : x - Step 2: Convert to fraction form
1,645,015.08/2,270,107.98 = 919,864.20/x - Step 3: Cross multiply
1,645,015.08x = 2,270,107.98 × 919,864.20 - Step 4: Simplify right side
1,645,015.08x = 2,088,191,060,936.32 - Step 5: Solve for x
x = 2,088,191,060,936.32/1,645,015.08 - Step 6: Final answer
x = 1,269,405.42
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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.