Finding the Fourth Proportional to 898,883.31, 1,240,450.77 and 490,985.09
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Solution
The fourth proportional to 898,883.31, 1,240,450.77 and 490,985.09 is: 677,554.94
Step by Step Solution
- Step 1: Write the proportion equation
898,883.31 : 1,240,450.77 = 490,985.09 : x - Step 2: Convert to fraction form
898,883.31/1,240,450.77 = 490,985.09/x - Step 3: Cross multiply
898,883.31x = 1,240,450.77 × 490,985.09 - Step 4: Simplify right side
898,883.31x = 609,042,826,746.77 - Step 5: Solve for x
x = 609,042,826,746.77/898,883.31 - Step 6: Final answer
x = 677,554.94
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1.5x scale
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.