Finding the Fourth Proportional to 538,495.70, 807,743.55 and 328,543.70
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Solution
The fourth proportional to 538,495.70, 807,743.55 and 328,543.70 is: 492,815.55
Step by Step Solution
- Step 1: Write the proportion equation
538,495.70 : 807,743.55 = 328,543.70 : x - Step 2: Convert to fraction form
538,495.70/807,743.55 = 328,543.70/x - Step 3: Cross multiply
538,495.70x = 807,743.55 × 328,543.70 - Step 4: Simplify right side
538,495.70x = 265,379,054,568.14 - Step 5: Solve for x
x = 265,379,054,568.14/538,495.70 - Step 6: Final answer
x = 492,815.55
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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.