Finding the Fourth Proportional to 714,679.14, 986,259.18 and 392,410.11
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Solution
The fourth proportional to 714,679.14, 986,259.18 and 392,410.11 is: 541,527.03
Step by Step Solution
- Step 1: Write the proportion equation
714,679.14 : 986,259.18 = 392,410.11 : x - Step 2: Convert to fraction form
714,679.14/986,259.18 = 392,410.11/x - Step 3: Cross multiply
714,679.14x = 986,259.18 × 392,410.11 - Step 4: Simplify right side
714,679.14x = 387,018,073,312.31 - Step 5: Solve for x
x = 387,018,073,312.31/714,679.14 - Step 6: Final answer
x = 541,527.03
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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.