Finding the Fourth Proportional to 1,188,455.28, 1,639,920.96 and 758,986.80
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Solution
The fourth proportional to 1,188,455.28, 1,639,920.96 and 758,986.80 is: 1,047,307.70
Step by Step Solution
- Step 1: Write the proportion equation
1,188,455.28 : 1,639,920.96 = 758,986.80 : x - Step 2: Convert to fraction form
1,188,455.28/1,639,920.96 = 758,986.80/x - Step 3: Cross multiply
1,188,455.28x = 1,639,920.96 × 758,986.80 - Step 4: Simplify right side
1,188,455.28x = 1,244,678,361,683.33 - Step 5: Solve for x
x = 1,244,678,361,683.33/1,188,455.28 - Step 6: Final answer
x = 1,047,307.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.