Finding the Fourth Proportional to 622,531.60, 858,844.13 and 380,393.79
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Solution
The fourth proportional to 622,531.60, 858,844.13 and 380,393.79 is: 524,790.99
Step by Step Solution
- Step 1: Write the proportion equation
622,531.60 : 858,844.13 = 380,393.79 : x - Step 2: Convert to fraction form
622,531.60/858,844.13 = 380,393.79/x - Step 3: Cross multiply
622,531.60x = 858,844.13 × 380,393.79 - Step 4: Simplify right side
622,531.60x = 326,698,976,288.75 - Step 5: Solve for x
x = 326,698,976,288.75/622,531.60 - Step 6: Final answer
x = 524,790.99
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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.