Finding the Fourth Proportional to 818,537.36, 1,129,431.65 and 455,952.20
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Solution
The fourth proportional to 818,537.36, 1,129,431.65 and 455,952.20 is: 629,130.53
Step by Step Solution
- Step 1: Write the proportion equation
818,537.36 : 1,129,431.65 = 455,952.20 : x - Step 2: Convert to fraction form
818,537.36/1,129,431.65 = 455,952.20/x - Step 3: Cross multiply
818,537.36x = 1,129,431.65 × 455,952.20 - Step 4: Simplify right side
818,537.36x = 514,966,837,640.21 - Step 5: Solve for x
x = 514,966,837,640.21/818,537.36 - Step 6: Final answer
x = 629,130.53
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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.