Finding the Fourth Proportional to 1,515,642, 2,091,586.14 and 836,578.68
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Solution
The fourth proportional to 1,515,642, 2,091,586.14 and 836,578.68 is: 1,154,478.68
Step by Step Solution
- Step 1: Write the proportion equation
1,515,642 : 2,091,586.14 = 836,578.68 : x - Step 2: Convert to fraction form
1,515,642/2,091,586.14 = 836,578.68/x - Step 3: Cross multiply
1,515,642x = 2,091,586.14 × 836,578.68 - Step 4: Simplify right side
1,515,642x = 1,749,776,372,107.50 - Step 5: Solve for x
x = 1,749,776,372,107.50/1,515,642 - Step 6: Final answer
x = 1,154,478.68
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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.