Finding the Fourth Proportional to 1,340,525.09, 1,849,941.92 and 728,686.73
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Solution
The fourth proportional to 1,340,525.09, 1,849,941.92 and 728,686.73 is: 1,005,597.09
Step by Step Solution
- Step 1: Write the proportion equation
1,340,525.09 : 1,849,941.92 = 728,686.73 : x - Step 2: Convert to fraction form
1,340,525.09/1,849,941.92 = 728,686.73/x - Step 3: Cross multiply
1,340,525.09x = 1,849,941.92 × 728,686.73 - Step 4: Simplify right side
1,340,525.09x = 1,348,028,124,731.29 - Step 5: Solve for x
x = 1,348,028,124,731.29/1,340,525.09 - Step 6: Final answer
x = 1,005,597.09
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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.