Finding the Fourth Proportional to 498,278.13, 687,623.63 and 271,923.63
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Solution
The fourth proportional to 498,278.13, 687,623.63 and 271,923.63 is: 375,254.51
Step by Step Solution
- Step 1: Write the proportion equation
498,278.13 : 687,623.63 = 271,923.63 : x - Step 2: Convert to fraction form
498,278.13/687,623.63 = 271,923.63/x - Step 3: Cross multiply
498,278.13x = 687,623.63 × 271,923.63 - Step 4: Simplify right side
498,278.13x = 186,981,114,223.19 - Step 5: Solve for x
x = 186,981,114,223.19/498,278.13 - Step 6: Final answer
x = 375,254.51
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1.5x scale
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.