Finding the Fourth Proportional to 529,187.40, 730,283.76 and 287,471.88
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Solution
The fourth proportional to 529,187.40, 730,283.76 and 287,471.88 is: 396,713.99
Step by Step Solution
- Step 1: Write the proportion equation
529,187.40 : 730,283.76 = 287,471.88 : x - Step 2: Convert to fraction form
529,187.40/730,283.76 = 287,471.88/x - Step 3: Cross multiply
529,187.40x = 730,283.76 × 287,471.88 - Step 4: Simplify right side
529,187.40x = 209,936,045,420.67 - Step 5: Solve for x
x = 209,936,045,420.67/529,187.40 - Step 6: Final answer
x = 396,713.99
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1.5x scale
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.