Finding the Fourth Proportional to 770,259.96, 1,062,600.55 and 498,415.61
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Solution
The fourth proportional to 770,259.96, 1,062,600.55 and 498,415.61 is: 687,581.76
Step by Step Solution
- Step 1: Write the proportion equation
770,259.96 : 1,062,600.55 = 498,415.61 : x - Step 2: Convert to fraction form
770,259.96/1,062,600.55 = 498,415.61/x - Step 3: Cross multiply
770,259.96x = 1,062,600.55 × 498,415.61 - Step 4: Simplify right side
770,259.96x = 529,616,702,725.05 - Step 5: Solve for x
x = 529,616,702,725.05/770,259.96 - Step 6: Final answer
x = 687,581.76
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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.