Finding the Fourth Proportional to 478,908.99, 718,614.99 and 212,860.44
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Solution
The fourth proportional to 478,908.99, 718,614.99 and 212,860.44 is: 319,402.45
Step by Step Solution
- Step 1: Write the proportion equation
478,908.99 : 718,614.99 = 212,860.44 : x - Step 2: Convert to fraction form
478,908.99/718,614.99 = 212,860.44/x - Step 3: Cross multiply
478,908.99x = 718,614.99 × 212,860.44 - Step 4: Simplify right side
478,908.99x = 152,964,702,962.00 - Step 5: Solve for x
x = 152,964,702,962.00/478,908.99 - Step 6: Final answer
x = 319,402.45
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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.