Finding the Fourth Proportional to 855,728.15, 1,283,621.99 and 406,217.43
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Solution
The fourth proportional to 855,728.15, 1,283,621.99 and 406,217.43 is: 609,340.28
Step by Step Solution
- Step 1: Write the proportion equation
855,728.15 : 1,283,621.99 = 406,217.43 : x - Step 2: Convert to fraction form
855,728.15/1,283,621.99 = 406,217.43/x - Step 3: Cross multiply
855,728.15x = 1,283,621.99 × 406,217.43 - Step 4: Simplify right side
855,728.15x = 521,429,623,838.20 - Step 5: Solve for x
x = 521,429,623,838.20/855,728.15 - Step 6: Final answer
x = 609,340.28
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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.