Finding the Fourth Proportional to 813,203.55, 1,122,227.49 and 450,633.47
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Solution
The fourth proportional to 813,203.55, 1,122,227.49 and 450,633.47 is: 621,877.83
Step by Step Solution
- Step 1: Write the proportion equation
813,203.55 : 1,122,227.49 = 450,633.47 : x - Step 2: Convert to fraction form
813,203.55/1,122,227.49 = 450,633.47/x - Step 3: Cross multiply
813,203.55x = 1,122,227.49 × 450,633.47 - Step 4: Simplify right side
813,203.55x = 505,713,262,336.95 - Step 5: Solve for x
x = 505,713,262,336.95/813,203.55 - Step 6: Final answer
x = 621,877.83
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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.