Finding the Fourth Proportional to 741,631.70, 1,112,447.55 and 209,145.80
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Solution
The fourth proportional to 741,631.70, 1,112,447.55 and 209,145.80 is: 313,718.70
Step by Step Solution
- Step 1: Write the proportion equation
741,631.70 : 1,112,447.55 = 209,145.80 : x - Step 2: Convert to fraction form
741,631.70/1,112,447.55 = 209,145.80/x - Step 3: Cross multiply
741,631.70x = 1,112,447.55 × 209,145.80 - Step 4: Simplify right side
741,631.70x = 232,663,732,802.79 - Step 5: Solve for x
x = 232,663,732,802.79/741,631.70 - Step 6: Final answer
x = 313,718.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.