Finding the Fourth Proportional to 557,278.41, 769,279.61 and 376,235.55
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Solution
The fourth proportional to 557,278.41, 769,279.61 and 376,235.55 is: 519,363.99
Step by Step Solution
- Step 1: Write the proportion equation
557,278.41 : 769,279.61 = 376,235.55 : x - Step 2: Convert to fraction form
557,278.41/769,279.61 = 376,235.55/x - Step 3: Cross multiply
557,278.41x = 769,279.61 × 376,235.55 - Step 4: Simplify right side
557,278.41x = 289,430,337,172.14 - Step 5: Solve for x
x = 289,430,337,172.14/557,278.41 - Step 6: Final answer
x = 519,363.99
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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.