Finding the Fourth Proportional to 768,748.68, 1,153,123.35 and 207,783.18
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Solution
The fourth proportional to 768,748.68, 1,153,123.35 and 207,783.18 is: 311,674.86
Step by Step Solution
- Step 1: Write the proportion equation
768,748.68 : 1,153,123.35 = 207,783.18 : x - Step 2: Convert to fraction form
768,748.68/1,153,123.35 = 207,783.18/x - Step 3: Cross multiply
768,748.68x = 1,153,123.35 × 207,783.18 - Step 4: Simplify right side
768,748.68x = 239,599,636,595.25 - Step 5: Solve for x
x = 239,599,636,595.25/768,748.68 - Step 6: Final answer
x = 311,674.86
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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.