Finding the Fourth Proportional to 636,198.42, 877,931.55 and 349,716.45
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Solution
The fourth proportional to 636,198.42, 877,931.55 and 349,716.45 is: 482,596.46
Step by Step Solution
- Step 1: Write the proportion equation
636,198.42 : 877,931.55 = 349,716.45 : x - Step 2: Convert to fraction form
636,198.42/877,931.55 = 349,716.45/x - Step 3: Cross multiply
636,198.42x = 877,931.55 × 349,716.45 - Step 4: Simplify right side
636,198.42x = 307,027,105,009.00 - Step 5: Solve for x
x = 307,027,105,009.00/636,198.42 - Step 6: Final answer
x = 482,596.46
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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.