Finding the Fourth Proportional to 727,686.36, 1,091,646.18 and 307,024.20
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Solution
The fourth proportional to 727,686.36, 1,091,646.18 and 307,024.20 is: 460,585.51
Step by Step Solution
- Step 1: Write the proportion equation
727,686.36 : 1,091,646.18 = 307,024.20 : x - Step 2: Convert to fraction form
727,686.36/1,091,646.18 = 307,024.20/x - Step 3: Cross multiply
727,686.36x = 1,091,646.18 × 307,024.20 - Step 4: Simplify right side
727,686.36x = 335,161,795,097.56 - Step 5: Solve for x
x = 335,161,795,097.56/727,686.36 - Step 6: Final answer
x = 460,585.51
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.