Finding the Fourth Proportional to 511,763.97, 766,887.80 and 207,788.49
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Solution
The fourth proportional to 511,763.97, 766,887.80 and 207,788.49 is: 311,374.91
Step by Step Solution
- Step 1: Write the proportion equation
511,763.97 : 766,887.80 = 207,788.49 : x - Step 2: Convert to fraction form
511,763.97/766,887.80 = 207,788.49/x - Step 3: Cross multiply
511,763.97x = 766,887.80 × 207,788.49 - Step 4: Simplify right side
511,763.97x = 159,350,457,961.42 - Step 5: Solve for x
x = 159,350,457,961.42/511,763.97 - Step 6: Final answer
x = 311,374.91
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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.