Finding the Fourth Proportional to 640,194.57, 883,486.33 and 353,733.12
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Solution
The fourth proportional to 640,194.57, 883,486.33 and 353,733.12 is: 488,161.55
Step by Step Solution
- Step 1: Write the proportion equation
640,194.57 : 883,486.33 = 353,733.12 : x - Step 2: Convert to fraction form
640,194.57/883,486.33 = 353,733.12/x - Step 3: Cross multiply
640,194.57x = 883,486.33 × 353,733.12 - Step 4: Simplify right side
640,194.57x = 312,518,375,988.25 - Step 5: Solve for x
x = 312,518,375,988.25/640,194.57 - Step 6: Final answer
x = 488,161.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.