Finding the Fourth Proportional to 1,117,602.06, 1,542,324.15 and 688,129.98
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Solution
The fourth proportional to 1,117,602.06, 1,542,324.15 and 688,129.98 is: 949,639.88
Step by Step Solution
- Step 1: Write the proportion equation
1,117,602.06 : 1,542,324.15 = 688,129.98 : x - Step 2: Convert to fraction form
1,117,602.06/1,542,324.15 = 688,129.98/x - Step 3: Cross multiply
1,117,602.06x = 1,542,324.15 × 688,129.98 - Step 4: Simplify right side
1,117,602.06x = 1,061,319,486,493.02 - Step 5: Solve for x
x = 1,061,319,486,493.02/1,117,602.06 - Step 6: Final answer
x = 949,639.88
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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.