Finding the Fourth Proportional to 512,368.07, 768,580.11 and 212,878.91
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Solution
The fourth proportional to 512,368.07, 768,580.11 and 212,878.91 is: 319,330.01
Step by Step Solution
- Step 1: Write the proportion equation
512,368.07 : 768,580.11 = 212,878.91 : x - Step 2: Convert to fraction form
512,368.07/768,580.11 = 212,878.91/x - Step 3: Cross multiply
512,368.07x = 768,580.11 × 212,878.91 - Step 4: Simplify right side
512,368.07x = 163,614,497,985.93 - Step 5: Solve for x
x = 163,614,497,985.93/512,368.07 - Step 6: Final answer
x = 319,330.01
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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.