Finding the Fourth Proportional to 1,243,445.49, 1,715,954.36 and 692,149.22
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Solution
The fourth proportional to 1,243,445.49, 1,715,954.36 and 692,149.22 is: 955,165.68
Step by Step Solution
- Step 1: Write the proportion equation
1,243,445.49 : 1,715,954.36 = 692,149.22 : x - Step 2: Convert to fraction form
1,243,445.49/1,715,954.36 = 692,149.22/x - Step 3: Cross multiply
1,243,445.49x = 1,715,954.36 × 692,149.22 - Step 4: Simplify right side
1,243,445.49x = 1,187,696,459,789.08 - Step 5: Solve for x
x = 1,187,696,459,789.08/1,243,445.49 - Step 6: Final answer
x = 955,165.68
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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.