Finding the Fourth Proportional to 640,177.44, 883,369.56 and 353,680.44
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Solution
The fourth proportional to 640,177.44, 883,369.56 and 353,680.44 is: 488,037.40
Step by Step Solution
- Step 1: Write the proportion equation
640,177.44 : 883,369.56 = 353,680.44 : x - Step 2: Convert to fraction form
640,177.44/883,369.56 = 353,680.44/x - Step 3: Cross multiply
640,177.44x = 883,369.56 × 353,680.44 - Step 4: Simplify right side
640,177.44x = 312,430,534,663.41 - Step 5: Solve for x
x = 312,430,534,663.41/640,177.44 - Step 6: Final answer
x = 488,037.40
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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.