Finding the Fourth Proportional to 790,719.12, 1,090,376.76 and 676,376.28
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Solution
The fourth proportional to 790,719.12, 1,090,376.76 and 676,376.28 is: 932,701.59
Step by Step Solution
- Step 1: Write the proportion equation
790,719.12 : 1,090,376.76 = 676,376.28 : x - Step 2: Convert to fraction form
790,719.12/1,090,376.76 = 676,376.28/x - Step 3: Cross multiply
790,719.12x = 1,090,376.76 × 676,376.28 - Step 4: Simplify right side
790,719.12x = 737,504,976,727.25 - Step 5: Solve for x
x = 737,504,976,727.25/790,719.12 - Step 6: Final answer
x = 932,701.59
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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.