Finding the Fourth Proportional to 721,037.08, 995,117.70 and 419,231.08
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Solution
The fourth proportional to 721,037.08, 995,117.70 and 419,231.08 is: 578,589.20
Step by Step Solution
- Step 1: Write the proportion equation
721,037.08 : 995,117.70 = 419,231.08 : x - Step 2: Convert to fraction form
721,037.08/995,117.70 = 419,231.08/x - Step 3: Cross multiply
721,037.08x = 995,117.70 × 419,231.08 - Step 4: Simplify right side
721,037.08x = 417,184,268,098.12 - Step 5: Solve for x
x = 417,184,268,098.12/721,037.08 - Step 6: Final answer
x = 578,589.20
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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.