Finding the Fourth Proportional to 439,204.70, 657,349.05 and 318,919.70
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Solution
The fourth proportional to 439,204.70, 657,349.05 and 318,919.70 is: 477,320.85
Step by Step Solution
- Step 1: Write the proportion equation
439,204.70 : 657,349.05 = 318,919.70 : x - Step 2: Convert to fraction form
439,204.70/657,349.05 = 318,919.70/x - Step 3: Cross multiply
439,204.70x = 657,349.05 × 318,919.70 - Step 4: Simplify right side
439,204.70x = 209,641,561,821.29 - Step 5: Solve for x
x = 209,641,561,821.29/439,204.70 - Step 6: Final answer
x = 477,320.85
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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.