Finding the Fourth Proportional to 776,669.10, 1,072,330.01 and 486,397.09
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Solution
The fourth proportional to 776,669.10, 1,072,330.01 and 486,397.09 is: 671,557.81
Step by Step Solution
- Step 1: Write the proportion equation
776,669.10 : 1,072,330.01 = 486,397.09 : x - Step 2: Convert to fraction form
776,669.10/1,072,330.01 = 486,397.09/x - Step 3: Cross multiply
776,669.10x = 1,072,330.01 × 486,397.09 - Step 4: Simplify right side
776,669.10x = 521,578,196,383.67 - Step 5: Solve for x
x = 521,578,196,383.67/776,669.10 - Step 6: Final answer
x = 671,557.81
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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.