Finding the Fourth Proportional to 620,605.80, 930,908.70 and 305,677.80
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Solution
The fourth proportional to 620,605.80, 930,908.70 and 305,677.80 is: 458,516.70
Step by Step Solution
- Step 1: Write the proportion equation
620,605.80 : 930,908.70 = 305,677.80 : x - Step 2: Convert to fraction form
620,605.80/930,908.70 = 305,677.80/x - Step 3: Cross multiply
620,605.80x = 930,908.70 × 305,677.80 - Step 4: Simplify right side
620,605.80x = 284,558,123,416.86 - Step 5: Solve for x
x = 284,558,123,416.86/620,605.80 - Step 6: Final answer
x = 458,516.70
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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.