Finding the Fourth Proportional to 818,561.01, 1,129,625.86 and 469,758.21
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Solution
The fourth proportional to 818,561.01, 1,129,625.86 and 469,758.21 is: 648,273.02
Step by Step Solution
- Step 1: Write the proportion equation
818,561.01 : 1,129,625.86 = 469,758.21 : x - Step 2: Convert to fraction form
818,561.01/1,129,625.86 = 469,758.21/x - Step 3: Cross multiply
818,561.01x = 1,129,625.86 × 469,758.21 - Step 4: Simplify right side
818,561.01x = 530,651,021,963.31 - Step 5: Solve for x
x = 530,651,021,963.31/818,561.01 - Step 6: Final answer
x = 648,273.02
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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.