Finding the Fourth Proportional to 682,657.07, 942,420.94 and 498,689.06
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Solution
The fourth proportional to 682,657.07, 942,420.94 and 498,689.06 is: 688,449.63
Step by Step Solution
- Step 1: Write the proportion equation
682,657.07 : 942,420.94 = 498,689.06 : x - Step 2: Convert to fraction form
682,657.07/942,420.94 = 498,689.06/x - Step 3: Cross multiply
682,657.07x = 942,420.94 × 498,689.06 - Step 4: Simplify right side
682,657.07x = 469,975,006,734.09 - Step 5: Solve for x
x = 469,975,006,734.09/682,657.07 - Step 6: Final answer
x = 688,449.63
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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.