Finding the Fourth Proportional to 694,237.03, 958,135.84 and 388,330.40
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Solution
The fourth proportional to 694,237.03, 958,135.84 and 388,330.40 is: 535,945.59
Step by Step Solution
- Step 1: Write the proportion equation
694,237.03 : 958,135.84 = 388,330.40 : x - Step 2: Convert to fraction form
694,237.03/958,135.84 = 388,330.40/x - Step 3: Cross multiply
694,237.03x = 958,135.84 × 388,330.40 - Step 4: Simplify right side
694,237.03x = 372,073,275,426.05 - Step 5: Solve for x
x = 372,073,275,426.05/694,237.03 - Step 6: Final answer
x = 535,945.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.