Finding the Fourth Proportional to 626,077.20, 863,986.46 and 354,139.23
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Solution
The fourth proportional to 626,077.20, 863,986.46 and 354,139.23 is: 488,712.09
Step by Step Solution
- Step 1: Write the proportion equation
626,077.20 : 863,986.46 = 354,139.23 : x - Step 2: Convert to fraction form
626,077.20/863,986.46 = 354,139.23/x - Step 3: Cross multiply
626,077.20x = 863,986.46 × 354,139.23 - Step 4: Simplify right side
626,077.20x = 305,971,497,904.13 - Step 5: Solve for x
x = 305,971,497,904.13/626,077.20 - Step 6: Final answer
x = 488,712.09
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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.