Finding the Fourth Proportional to 502,438.80, 752,783.40 and 324,854.40
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Solution
The fourth proportional to 502,438.80, 752,783.40 and 324,854.40 is: 486,715.99
Step by Step Solution
- Step 1: Write the proportion equation
502,438.80 : 752,783.40 = 324,854.40 : x - Step 2: Convert to fraction form
502,438.80/752,783.40 = 324,854.40/x - Step 3: Cross multiply
502,438.80x = 752,783.40 × 324,854.40 - Step 4: Simplify right side
502,438.80x = 244,544,999,736.96 - Step 5: Solve for x
x = 244,544,999,736.96/502,438.80 - Step 6: Final answer
x = 486,715.99
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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.