Finding the Fourth Proportional to 640,750.26, 884,213.70 and 368,780.40
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Solution
The fourth proportional to 640,750.26, 884,213.70 and 368,780.40 is: 508,904.49
Step by Step Solution
- Step 1: Write the proportion equation
640,750.26 : 884,213.70 = 368,780.40 : x - Step 2: Convert to fraction form
640,750.26/884,213.70 = 368,780.40/x - Step 3: Cross multiply
640,750.26x = 884,213.70 × 368,780.40 - Step 4: Simplify right side
640,750.26x = 326,080,681,971.48 - Step 5: Solve for x
x = 326,080,681,971.48/640,750.26 - Step 6: Final answer
x = 508,904.49
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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.