Finding the Fourth Proportional to 1,515,538.14, 2,091,293.73 and 836,430.90
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Solution
The fourth proportional to 1,515,538.14, 2,091,293.73 and 836,430.90 is: 1,154,192.46
Step by Step Solution
- Step 1: Write the proportion equation
1,515,538.14 : 2,091,293.73 = 836,430.90 : x - Step 2: Convert to fraction form
1,515,538.14/2,091,293.73 = 836,430.90/x - Step 3: Cross multiply
1,515,538.14x = 2,091,293.73 × 836,430.90 - Step 4: Simplify right side
1,515,538.14x = 1,749,222,696,748.26 - Step 5: Solve for x
x = 1,749,222,696,748.26/1,515,538.14 - Step 6: Final answer
x = 1,154,192.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.