Finding the Fourth Proportional to 640,193.07, 883,484.26 and 353,731.62
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Solution
The fourth proportional to 640,193.07, 883,484.26 and 353,731.62 is: 488,159.48
Step by Step Solution
- Step 1: Write the proportion equation
640,193.07 : 883,484.26 = 353,731.62 : x - Step 2: Convert to fraction form
640,193.07/883,484.26 = 353,731.62/x - Step 3: Cross multiply
640,193.07x = 883,484.26 × 353,731.62 - Step 4: Simplify right side
640,193.07x = 312,516,312,348.22 - Step 5: Solve for x
x = 312,516,312,348.22/640,193.07 - Step 6: Final answer
x = 488,159.48
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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.