Finding the Fourth Proportional to 512,373.18, 768,587.79 and 212,884.04
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Solution
The fourth proportional to 512,373.18, 768,587.79 and 212,884.04 is: 319,337.70
Step by Step Solution
- Step 1: Write the proportion equation
512,373.18 : 768,587.79 = 212,884.04 : x - Step 2: Convert to fraction form
512,373.18/768,587.79 = 212,884.04/x - Step 3: Cross multiply
512,373.18x = 768,587.79 × 212,884.04 - Step 4: Simplify right side
512,373.18x = 163,620,073,829.87 - Step 5: Solve for x
x = 163,620,073,829.87/512,373.18 - Step 6: Final answer
x = 319,337.70
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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.