Finding the Fourth Proportional to 438,652.48, 605,306.64 and 247,684.72
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Solution
The fourth proportional to 438,652.48, 605,306.64 and 247,684.72 is: 341,785.84
Step by Step Solution
- Step 1: Write the proportion equation
438,652.48 : 605,306.64 = 247,684.72 : x - Step 2: Convert to fraction form
438,652.48/605,306.64 = 247,684.72/x - Step 3: Cross multiply
438,652.48x = 605,306.64 × 247,684.72 - Step 4: Simplify right side
438,652.48x = 149,925,205,642.54 - Step 5: Solve for x
x = 149,925,205,642.54/438,652.48 - Step 6: Final answer
x = 341,785.84
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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.