Finding the Fourth Proportional to 721,330.64, 1,082,068.12 and 247,953.68
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Solution
The fourth proportional to 721,330.64, 1,082,068.12 and 247,953.68 is: 371,955.32
Step by Step Solution
- Step 1: Write the proportion equation
721,330.64 : 1,082,068.12 = 247,953.68 : x - Step 2: Convert to fraction form
721,330.64/1,082,068.12 = 247,953.68/x - Step 3: Cross multiply
721,330.64x = 1,082,068.12 × 247,953.68 - Step 4: Simplify right side
721,330.64x = 268,302,772,364.68 - Step 5: Solve for x
x = 268,302,772,364.68/721,330.64 - Step 6: Final answer
x = 371,955.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.