Finding the Fourth Proportional to 753,342.93, 1,039,620.42 and 413,811.18
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Solution
The fourth proportional to 753,342.93, 1,039,620.42 and 413,811.18 is: 571,063.37
Step by Step Solution
- Step 1: Write the proportion equation
753,342.93 : 1,039,620.42 = 413,811.18 : x - Step 2: Convert to fraction form
753,342.93/1,039,620.42 = 413,811.18/x - Step 3: Cross multiply
753,342.93x = 1,039,620.42 × 413,811.18 - Step 4: Simplify right side
753,342.93x = 430,206,552,752.30 - Step 5: Solve for x
x = 430,206,552,752.30/753,342.93 - Step 6: Final answer
x = 571,063.37
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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.