Finding the Fourth Proportional to 768,912.30, 1,153,368.45 and 207,946.80
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Solution
The fourth proportional to 768,912.30, 1,153,368.45 and 207,946.80 is: 311,920.20
Step by Step Solution
- Step 1: Write the proportion equation
768,912.30 : 1,153,368.45 = 207,946.80 : x - Step 2: Convert to fraction form
768,912.30/1,153,368.45 = 207,946.80/x - Step 3: Cross multiply
768,912.30x = 1,153,368.45 × 207,946.80 - Step 4: Simplify right side
768,912.30x = 239,839,278,398.46 - Step 5: Solve for x
x = 239,839,278,398.46/768,912.30 - Step 6: Final answer
x = 311,920.20
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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.