Finding the Fourth Proportional to 898,534.37, 1,239,983.43 and 490,639.05
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Solution
The fourth proportional to 898,534.37, 1,239,983.43 and 490,639.05 is: 677,085.16
Step by Step Solution
- Step 1: Write the proportion equation
898,534.37 : 1,239,983.43 = 490,639.05 : x - Step 2: Convert to fraction form
898,534.37/1,239,983.43 = 490,639.05/x - Step 3: Cross multiply
898,534.37x = 1,239,983.43 × 490,639.05 - Step 4: Simplify right side
898,534.37x = 608,384,292,110.94 - Step 5: Solve for x
x = 608,384,292,110.94/898,534.37 - Step 6: Final answer
x = 677,085.16
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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.