Finding the Fourth Proportional to 512,371.07, 768,584.61 and 212,881.91
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Solution
The fourth proportional to 512,371.07, 768,584.61 and 212,881.91 is: 319,334.50
Step by Step Solution
- Step 1: Write the proportion equation
512,371.07 : 768,584.61 = 212,881.91 : x - Step 2: Convert to fraction form
512,371.07/768,584.61 = 212,881.91/x - Step 3: Cross multiply
512,371.07x = 768,584.61 × 212,881.91 - Step 4: Simplify right side
512,371.07x = 163,617,759,773.41 - Step 5: Solve for x
x = 163,617,759,773.41/512,371.07 - Step 6: Final answer
x = 319,334.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.