Finding the Fourth Proportional to 511,763.48, 766,887.05 and 207,787.99
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Solution
The fourth proportional to 511,763.48, 766,887.05 and 207,787.99 is: 311,374.15
Step by Step Solution
- Step 1: Write the proportion equation
511,763.48 : 766,887.05 = 207,787.99 : x - Step 2: Convert to fraction form
511,763.48/766,887.05 = 207,787.99/x - Step 3: Cross multiply
511,763.48x = 766,887.05 × 207,787.99 - Step 4: Simplify right side
511,763.48x = 159,349,914,842.09 - Step 5: Solve for x
x = 159,349,914,842.09/511,763.48 - Step 6: Final answer
x = 311,374.15
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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.