Finding the Fourth Proportional to 903,036.43, 1,245,159.42 and 721,623.97
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Solution
The fourth proportional to 903,036.43, 1,245,159.42 and 721,623.97 is: 995,017.32
Step by Step Solution
- Step 1: Write the proportion equation
903,036.43 : 1,245,159.42 = 721,623.97 : x - Step 2: Convert to fraction form
903,036.43/1,245,159.42 = 721,623.97/x - Step 3: Cross multiply
903,036.43x = 1,245,159.42 × 721,623.97 - Step 4: Simplify right side
903,036.43x = 898,536,883,943.30 - Step 5: Solve for x
x = 898,536,883,943.30/903,036.43 - Step 6: Final answer
x = 995,017.32
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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.