Finding the Fourth Proportional to 515,894.66, 711,936.12 and 286,452.44
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Solution
The fourth proportional to 515,894.66, 711,936.12 and 286,452.44 is: 395,305.19
Step by Step Solution
- Step 1: Write the proportion equation
515,894.66 : 711,936.12 = 286,452.44 : x - Step 2: Convert to fraction form
515,894.66/711,936.12 = 286,452.44/x - Step 3: Cross multiply
515,894.66x = 711,936.12 × 286,452.44 - Step 4: Simplify right side
515,894.66x = 203,935,838,698.13 - Step 5: Solve for x
x = 203,935,838,698.13/515,894.66 - Step 6: Final answer
x = 395,305.19
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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.