Finding the Fourth Proportional to 878,688.41, 1,212,642.29 and 496,750.73
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Solution
The fourth proportional to 878,688.41, 1,212,642.29 and 496,750.73 is: 685,545.56
Step by Step Solution
- Step 1: Write the proportion equation
878,688.41 : 1,212,642.29 = 496,750.73 : x - Step 2: Convert to fraction form
878,688.41/1,212,642.29 = 496,750.73/x - Step 3: Cross multiply
878,688.41x = 1,212,642.29 × 496,750.73 - Step 4: Simplify right side
878,688.41x = 602,380,937,965.04 - Step 5: Solve for x
x = 602,380,937,965.04/878,688.41 - Step 6: Final answer
x = 685,545.56
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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.