Finding the Fourth Proportional to 770,260.05, 1,062,600.68 and 498,415.70
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Solution
The fourth proportional to 770,260.05, 1,062,600.68 and 498,415.70 is: 687,581.88
Step by Step Solution
- Step 1: Write the proportion equation
770,260.05 : 1,062,600.68 = 498,415.70 : x - Step 2: Convert to fraction form
770,260.05/1,062,600.68 = 498,415.70/x - Step 3: Cross multiply
770,260.05x = 1,062,600.68 × 498,415.70 - Step 4: Simplify right side
770,260.05x = 529,616,853,937.59 - Step 5: Solve for x
x = 529,616,853,937.59/770,260.05 - Step 6: Final answer
x = 687,581.88
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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.