Finding the Fourth Proportional to 640,447.24, 883,939.08 and 422,272.12
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Solution
The fourth proportional to 640,447.24, 883,939.08 and 422,272.12 is: 582,815.89
Step by Step Solution
- Step 1: Write the proportion equation
640,447.24 : 883,939.08 = 422,272.12 : x - Step 2: Convert to fraction form
640,447.24/883,939.08 = 422,272.12/x - Step 3: Cross multiply
640,447.24x = 883,939.08 × 422,272.12 - Step 4: Simplify right side
640,447.24x = 373,262,829,262.45 - Step 5: Solve for x
x = 373,262,829,262.45/640,447.24 - Step 6: Final answer
x = 582,815.89
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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.