Finding the Fourth Proportional to 557,294.78, 769,302.27 and 376,251.98
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Solution
The fourth proportional to 557,294.78, 769,302.27 and 376,251.98 is: 519,386.71
Step by Step Solution
- Step 1: Write the proportion equation
557,294.78 : 769,302.27 = 376,251.98 : x - Step 2: Convert to fraction form
557,294.78/769,302.27 = 376,251.98/x - Step 3: Cross multiply
557,294.78x = 769,302.27 × 376,251.98 - Step 4: Simplify right side
557,294.78x = 289,451,502,306.00 - Step 5: Solve for x
x = 289,451,502,306.00/557,294.78 - Step 6: Final answer
x = 519,386.71
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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.