Finding the Fourth Proportional to 498,745.98, 688,268.34 and 272,391.48
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Solution
The fourth proportional to 498,745.98, 688,268.34 and 272,391.48 is: 375,899.63
Step by Step Solution
- Step 1: Write the proportion equation
498,745.98 : 688,268.34 = 272,391.48 : x - Step 2: Convert to fraction form
498,745.98/688,268.34 = 272,391.48/x - Step 3: Cross multiply
498,745.98x = 688,268.34 × 272,391.48 - Step 4: Simplify right side
498,745.98x = 187,478,431,769.74 - Step 5: Solve for x
x = 187,478,431,769.74/498,745.98 - Step 6: Final answer
x = 375,899.63
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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.