Finding the Fourth Proportional to 878,899.36, 1,212,847.98 and 496,934.34
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Solution
The fourth proportional to 878,899.36, 1,212,847.98 and 496,934.34 is: 685,750.65
Step by Step Solution
- Step 1: Write the proportion equation
878,899.36 : 1,212,847.98 = 496,934.34 : x - Step 2: Convert to fraction form
878,899.36/1,212,847.98 = 496,934.34/x - Step 3: Cross multiply
878,899.36x = 1,212,847.98 × 496,934.34 - Step 4: Simplify right side
878,899.36x = 602,705,810,461.63 - Step 5: Solve for x
x = 602,705,810,461.63/878,899.36 - Step 6: Final answer
x = 685,750.65
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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.