Finding the Fourth Proportional to 831,107.66, 1,240,651.58 and 730,216.89
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Solution
The fourth proportional to 831,107.66, 1,240,651.58 and 730,216.89 is: 1,090,044.99
Step by Step Solution
- Step 1: Write the proportion equation
831,107.66 : 1,240,651.58 = 730,216.89 : x - Step 2: Convert to fraction form
831,107.66/1,240,651.58 = 730,216.89/x - Step 3: Cross multiply
831,107.66x = 1,240,651.58 × 730,216.89 - Step 4: Simplify right side
831,107.66x = 905,944,734,670.10 - Step 5: Solve for x
x = 905,944,734,670.10/831,107.66 - Step 6: Final answer
x = 1,090,044.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.