Finding the Fourth Proportional to 511,207.80, 766,811.70 and 511,207.80
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Solution
The fourth proportional to 511,207.80, 766,811.70 and 511,207.80 is: 766,811.70
Step by Step Solution
- Step 1: Write the proportion equation
511,207.80 : 766,811.70 = 511,207.80 : x - Step 2: Convert to fraction form
511,207.80/766,811.70 = 511,207.80/x - Step 3: Cross multiply
511,207.80x = 766,811.70 × 511,207.80 - Step 4: Simplify right side
511,207.80x = 392,000,122,171.26 - Step 5: Solve for x
x = 392,000,122,171.26/511,207.80 - Step 6: Final answer
x = 766,811.70
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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.