Finding the Fourth Proportional to 849,062.10, 1,171,715.42 and 486,478.68
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Solution
The fourth proportional to 849,062.10, 1,171,715.42 and 486,478.68 is: 671,346.15
Step by Step Solution
- Step 1: Write the proportion equation
849,062.10 : 1,171,715.42 = 486,478.68 : x - Step 2: Convert to fraction form
849,062.10/1,171,715.42 = 486,478.68/x - Step 3: Cross multiply
849,062.10x = 1,171,715.42 × 486,478.68 - Step 4: Simplify right side
849,062.10x = 570,014,570,857.25 - Step 5: Solve for x
x = 570,014,570,857.25/849,062.10 - Step 6: Final answer
x = 671,346.15
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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.