Finding the Fourth Proportional to 478,329.28, 717,396.08 and 178,754.56
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Solution
The fourth proportional to 478,329.28, 717,396.08 and 178,754.56 is: 268,095.28
Step by Step Solution
- Step 1: Write the proportion equation
478,329.28 : 717,396.08 = 178,754.56 : x - Step 2: Convert to fraction form
478,329.28/717,396.08 = 178,754.56/x - Step 3: Cross multiply
478,329.28x = 717,396.08 × 178,754.56 - Step 4: Simplify right side
478,329.28x = 128,237,820,626.13 - Step 5: Solve for x
x = 128,237,820,626.13/478,329.28 - Step 6: Final answer
x = 268,095.28
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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.