Finding the Fourth Proportional to 874,657.85, 1,312,369.49 and 306,447.91
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Solution
The fourth proportional to 874,657.85, 1,312,369.49 and 306,447.91 is: 459,805.95
Step by Step Solution
- Step 1: Write the proportion equation
874,657.85 : 1,312,369.49 = 306,447.91 : x - Step 2: Convert to fraction form
874,657.85/1,312,369.49 = 306,447.91/x - Step 3: Cross multiply
874,657.85x = 1,312,369.49 × 306,447.91 - Step 4: Simplify right side
874,657.85x = 402,172,884,843.46 - Step 5: Solve for x
x = 402,172,884,843.46/874,657.85 - Step 6: Final answer
x = 459,805.95
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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.