Finding the Fourth Proportional to 439,207.70, 657,353.55 and 318,922.70
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Solution
The fourth proportional to 439,207.70, 657,353.55 and 318,922.70 is: 477,325.35
Step by Step Solution
- Step 1: Write the proportion equation
439,207.70 : 657,353.55 = 318,922.70 : x - Step 2: Convert to fraction form
439,207.70/657,353.55 = 318,922.70/x - Step 3: Cross multiply
439,207.70x = 657,353.55 × 318,922.70 - Step 4: Simplify right side
439,207.70x = 209,644,969,020.59 - Step 5: Solve for x
x = 209,644,969,020.59/439,207.70 - Step 6: Final answer
x = 477,325.35
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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.