Finding the Third Proportional to 988,471.88 and 2,158,221.75
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Solution
The third proportional to 988,471.88 and 2,158,221.75 is: 4,712,244.47
Step by Step Solution
- Step 1: Write the proportion equation
988,471.88 : 2,158,221.75 = 2,158,221.75 : x - Step 2: Convert to fraction form
988,471.88/2,158,221.75 = 2,158,221.75/x - Step 3: Cross multiply
988,471.88x = 2,158,221.75 × 2,158,221.75 - Step 4: Simplify right side
988,471.88x = 4,657,921,122,173.06 - Step 5: Solve for x
x = 4,657,921,122,173.06/988,471.88 - Step 6: Final answer
x = 4,712,244.47
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.