Finding the Fourth Proportional to 547,775.80, 821,663.70 and 311,579.80
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Solution
The fourth proportional to 547,775.80, 821,663.70 and 311,579.80 is: 467,369.70
Step by Step Solution
- Step 1: Write the proportion equation
547,775.80 : 821,663.70 = 311,579.80 : x - Step 2: Convert to fraction form
547,775.80/821,663.70 = 311,579.80/x - Step 3: Cross multiply
547,775.80x = 821,663.70 × 311,579.80 - Step 4: Simplify right side
547,775.80x = 256,013,811,313.26 - Step 5: Solve for x
x = 256,013,811,313.26/547,775.80 - Step 6: Final answer
x = 467,369.70
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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.