Finding the Fourth Proportional to 511,962.84, 767,616.12 and 212,649.96
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Solution
The fourth proportional to 511,962.84, 767,616.12 and 212,649.96 is: 318,838.64
Step by Step Solution
- Step 1: Write the proportion equation
511,962.84 : 767,616.12 = 212,649.96 : x - Step 2: Convert to fraction form
511,962.84/767,616.12 = 212,649.96/x - Step 3: Cross multiply
511,962.84x = 767,616.12 × 212,649.96 - Step 4: Simplify right side
511,962.84x = 163,233,537,213.36 - Step 5: Solve for x
x = 163,233,537,213.36/511,962.84 - Step 6: Final answer
x = 318,838.64
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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.