Finding the Fourth Proportional to 478,731.84, 717,487.20 and 254,199.84
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Solution
The fourth proportional to 478,731.84, 717,487.20 and 254,199.84 is: 380,975.56
Step by Step Solution
- Step 1: Write the proportion equation
478,731.84 : 717,487.20 = 254,199.84 : x - Step 2: Convert to fraction form
478,731.84/717,487.20 = 254,199.84/x - Step 3: Cross multiply
478,731.84x = 717,487.20 × 254,199.84 - Step 4: Simplify right side
478,731.84x = 182,385,131,442.05 - Step 5: Solve for x
x = 182,385,131,442.05/478,731.84 - Step 6: Final answer
x = 380,975.56
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1.5x scale
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.