Finding the Fourth Proportional to 1,348,591.28, 1,861,426.68 and 838,989.68
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Solution
The fourth proportional to 1,348,591.28, 1,861,426.68 and 838,989.68 is: 1,158,036.39
Step by Step Solution
- Step 1: Write the proportion equation
1,348,591.28 : 1,861,426.68 = 838,989.68 : x - Step 2: Convert to fraction form
1,348,591.28/1,861,426.68 = 838,989.68/x - Step 3: Cross multiply
1,348,591.28x = 1,861,426.68 × 838,989.68 - Step 4: Simplify right side
1,348,591.28x = 1,561,717,774,596.66 - Step 5: Solve for x
x = 1,561,717,774,596.66/1,348,591.28 - Step 6: Final answer
x = 1,158,036.39
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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.