Finding the Fourth Proportional to 878,506.75, 1,212,340.14 and 476,098.75
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Solution
The fourth proportional to 878,506.75, 1,212,340.14 and 476,098.75 is: 657,016.72
Step by Step Solution
- Step 1: Write the proportion equation
878,506.75 : 1,212,340.14 = 476,098.75 : x - Step 2: Convert to fraction form
878,506.75/1,212,340.14 = 476,098.75/x - Step 3: Cross multiply
878,506.75x = 1,212,340.14 × 476,098.75 - Step 4: Simplify right side
878,506.75x = 577,193,625,228.83 - Step 5: Solve for x
x = 577,193,625,228.83/878,506.75 - Step 6: Final answer
x = 657,016.72
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1.5x scale
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.