Finding the Fourth Proportional to 478,786.86, 717,959.49 and 141,706.98
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Solution
The fourth proportional to 478,786.86, 717,959.49 and 141,706.98 is: 212,495.12
Step by Step Solution
- Step 1: Write the proportion equation
478,786.86 : 717,959.49 = 141,706.98 : x - Step 2: Convert to fraction form
478,786.86/717,959.49 = 141,706.98/x - Step 3: Cross multiply
478,786.86x = 717,959.49 × 141,706.98 - Step 4: Simplify right side
478,786.86x = 101,739,871,090.24 - Step 5: Solve for x
x = 101,739,871,090.24/478,786.86 - Step 6: Final answer
x = 212,495.12
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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.