Finding the Fourth Proportional to 813,295.47, 1,122,468.80 and 469,067.14
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Solution
The fourth proportional to 813,295.47, 1,122,468.80 and 469,067.14 is: 647,382.47
Step by Step Solution
- Step 1: Write the proportion equation
813,295.47 : 1,122,468.80 = 469,067.14 : x - Step 2: Convert to fraction form
813,295.47/1,122,468.80 = 469,067.14/x - Step 3: Cross multiply
813,295.47x = 1,122,468.80 × 469,067.14 - Step 4: Simplify right side
813,295.47x = 526,513,229,755.23 - Step 5: Solve for x
x = 526,513,229,755.23/813,295.47 - Step 6: Final answer
x = 647,382.47
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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.