Finding the Fourth Proportional to 918,246.26, 1,377,393.99 and 287,160.06
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Solution
The fourth proportional to 918,246.26, 1,377,393.99 and 287,160.06 is: 430,747.78
Step by Step Solution
- Step 1: Write the proportion equation
918,246.26 : 1,377,393.99 = 287,160.06 : x - Step 2: Convert to fraction form
918,246.26/1,377,393.99 = 287,160.06/x - Step 3: Cross multiply
918,246.26x = 1,377,393.99 × 287,160.06 - Step 4: Simplify right side
918,246.26x = 395,532,540,812.04 - Step 5: Solve for x
x = 395,532,540,812.04/918,246.26 - Step 6: Final answer
x = 430,747.78
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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.