Finding the Fourth Proportional to 509,481.99, 763,927.79 and 209,623.84
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Solution
The fourth proportional to 509,481.99, 763,927.79 and 209,623.84 is: 314,314.30
Step by Step Solution
- Step 1: Write the proportion equation
509,481.99 : 763,927.79 = 209,623.84 : x - Step 2: Convert to fraction form
509,481.99/763,927.79 = 209,623.84/x - Step 3: Cross multiply
509,481.99x = 763,927.79 × 209,623.84 - Step 4: Simplify right side
509,481.99x = 160,137,476,822.51 - Step 5: Solve for x
x = 160,137,476,822.51/509,481.99 - Step 6: Final answer
x = 314,314.30
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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.