Finding the Fourth Proportional to 872,686.08, 1,204,416.46 and 490,710.12
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Solution
The fourth proportional to 872,686.08, 1,204,416.46 and 490,710.12 is: 677,241.63
Step by Step Solution
- Step 1: Write the proportion equation
872,686.08 : 1,204,416.46 = 490,710.12 : x - Step 2: Convert to fraction form
872,686.08/1,204,416.46 = 490,710.12/x - Step 3: Cross multiply
872,686.08x = 1,204,416.46 × 490,710.12 - Step 4: Simplify right side
872,686.08x = 591,019,345,616.58 - Step 5: Solve for x
x = 591,019,345,616.58/872,686.08 - Step 6: Final answer
x = 677,241.63
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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.