Finding the Fourth Proportional to 1,297,486, 1,790,523.57 and 716,749.12
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Solution
The fourth proportional to 1,297,486, 1,790,523.57 and 716,749.12 is: 989,109.86
Step by Step Solution
- Step 1: Write the proportion equation
1,297,486 : 1,790,523.57 = 716,749.12 : x - Step 2: Convert to fraction form
1,297,486/1,790,523.57 = 716,749.12/x - Step 3: Cross multiply
1,297,486x = 1,790,523.57 × 716,749.12 - Step 4: Simplify right side
1,297,486x = 1,283,356,193,136.76 - Step 5: Solve for x
x = 1,283,356,193,136.76/1,297,486 - Step 6: Final answer
x = 989,109.86
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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.