Finding the Fourth Proportional to 557,877.76, 769,841.79 and 316,163.23
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Solution
The fourth proportional to 557,877.76, 769,841.79 and 316,163.23 is: 436,288.52
Step by Step Solution
- Step 1: Write the proportion equation
557,877.76 : 769,841.79 = 316,163.23 : x - Step 2: Convert to fraction form
557,877.76/769,841.79 = 316,163.23/x - Step 3: Cross multiply
557,877.76x = 769,841.79 × 316,163.23 - Step 4: Simplify right side
557,877.76x = 243,395,663,805.17 - Step 5: Solve for x
x = 243,395,663,805.17/557,877.76 - Step 6: Final answer
x = 436,288.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.