Finding the Fourth Proportional to 831,937.30, 1,147,974.73 and 469,339.99
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Solution
The fourth proportional to 831,937.30, 1,147,974.73 and 469,339.99 is: 647,633.48
Step by Step Solution
- Step 1: Write the proportion equation
831,937.30 : 1,147,974.73 = 469,339.99 : x - Step 2: Convert to fraction form
831,937.30/1,147,974.73 = 469,339.99/x - Step 3: Cross multiply
831,937.30x = 1,147,974.73 × 469,339.99 - Step 4: Simplify right side
831,937.30x = 538,790,444,255.17 - Step 5: Solve for x
x = 538,790,444,255.17/831,937.30 - Step 6: Final answer
x = 647,633.48
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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.