Finding the Fourth Proportional to 640,168.44, 883,357.16 and 353,671.44
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Solution
The fourth proportional to 640,168.44, 883,357.16 and 353,671.44 is: 488,024.99
Step by Step Solution
- Step 1: Write the proportion equation
640,168.44 : 883,357.16 = 353,671.44 : x - Step 2: Convert to fraction form
640,168.44/883,357.16 = 353,671.44/x - Step 3: Cross multiply
640,168.44x = 883,357.16 × 353,671.44 - Step 4: Simplify right side
640,168.44x = 312,418,197,043.15 - Step 5: Solve for x
x = 312,418,197,043.15/640,168.44 - Step 6: Final answer
x = 488,024.99
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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.