Finding the Fourth Proportional to 613,894.06, 847,182.81 and 355,790.09
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Solution
The fourth proportional to 613,894.06, 847,182.81 and 355,790.09 is: 490,995.55
Step by Step Solution
- Step 1: Write the proportion equation
613,894.06 : 847,182.81 = 355,790.09 : x - Step 2: Convert to fraction form
613,894.06/847,182.81 = 355,790.09/x - Step 3: Cross multiply
613,894.06x = 847,182.81 × 355,790.09 - Step 4: Simplify right side
613,894.06x = 301,419,251,668.52 - Step 5: Solve for x
x = 301,419,251,668.52/613,894.06 - Step 6: Final answer
x = 490,995.55
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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.