Finding the Fourth Proportional to 776,192.12, 1,071,143.49 and 436,660.37
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Solution
The fourth proportional to 776,192.12, 1,071,143.49 and 436,660.37 is: 602,590.39
Step by Step Solution
- Step 1: Write the proportion equation
776,192.12 : 1,071,143.49 = 436,660.37 : x - Step 2: Convert to fraction form
776,192.12/1,071,143.49 = 436,660.37/x - Step 3: Cross multiply
776,192.12x = 1,071,143.49 × 436,660.37 - Step 4: Simplify right side
776,192.12x = 467,725,912,965.04 - Step 5: Solve for x
x = 467,725,912,965.04/776,192.12 - Step 6: Final answer
x = 602,590.39
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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.