Finding the Fourth Proportional to 478,729.84, 717,484.20 and 254,197.84
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Solution
The fourth proportional to 478,729.84, 717,484.20 and 254,197.84 is: 380,972.56
Step by Step Solution
- Step 1: Write the proportion equation
478,729.84 : 717,484.20 = 254,197.84 : x - Step 2: Convert to fraction form
478,729.84/717,484.20 = 254,197.84/x - Step 3: Cross multiply
478,729.84x = 717,484.20 × 254,197.84 - Step 4: Simplify right side
478,729.84x = 182,382,933,874.13 - Step 5: Solve for x
x = 182,382,933,874.13/478,729.84 - Step 6: Final answer
x = 380,972.56
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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.