Finding the Fourth Proportional to 1,185,264.14, 1,635,652.05 and 641,388.02
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Solution
The fourth proportional to 1,185,264.14, 1,635,652.05 and 641,388.02 is: 885,108.72
Step by Step Solution
- Step 1: Write the proportion equation
1,185,264.14 : 1,635,652.05 = 641,388.02 : x - Step 2: Convert to fraction form
1,185,264.14/1,635,652.05 = 641,388.02/x - Step 3: Cross multiply
1,185,264.14x = 1,635,652.05 × 641,388.02 - Step 4: Simplify right side
1,185,264.14x = 1,049,087,629,758.44 - Step 5: Solve for x
x = 1,049,087,629,758.44/1,185,264.14 - Step 6: Final answer
x = 885,108.72
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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.