Finding the Fourth Proportional to 652,249.70, 978,374.55 and 297,955.70
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Solution
The fourth proportional to 652,249.70, 978,374.55 and 297,955.70 is: 446,933.55
Step by Step Solution
- Step 1: Write the proportion equation
652,249.70 : 978,374.55 = 297,955.70 : x - Step 2: Convert to fraction form
652,249.70/978,374.55 = 297,955.70/x - Step 3: Cross multiply
652,249.70x = 978,374.55 × 297,955.70 - Step 4: Simplify right side
652,249.70x = 291,512,273,907.44 - Step 5: Solve for x
x = 291,512,273,907.44/652,249.70 - Step 6: Final answer
x = 446,933.55
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Double scale
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Similar ratio
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1.5x scale
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.