Finding the Fourth Proportional to 1,098,967.37, 1,517,315.49 and 686,133.32
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Solution
The fourth proportional to 1,098,967.37, 1,517,315.49 and 686,133.32 is: 947,326.32
Step by Step Solution
- Step 1: Write the proportion equation
1,098,967.37 : 1,517,315.49 = 686,133.32 : x - Step 2: Convert to fraction form
1,098,967.37/1,517,315.49 = 686,133.32/x - Step 3: Cross multiply
1,098,967.37x = 1,517,315.49 × 686,133.32 - Step 4: Simplify right side
1,098,967.37x = 1,041,080,707,054.55 - Step 5: Solve for x
x = 1,041,080,707,054.55/1,098,967.37 - Step 6: Final answer
x = 947,326.32
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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.