Finding the Fourth Proportional to 1,107,718.20, 1,660,390.74 and 791,214.84
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Solution
The fourth proportional to 1,107,718.20, 1,660,390.74 and 791,214.84 is: 1,185,974.73
Step by Step Solution
- Step 1: Write the proportion equation
1,107,718.20 : 1,660,390.74 = 791,214.84 : x - Step 2: Convert to fraction form
1,107,718.20/1,660,390.74 = 791,214.84/x - Step 3: Cross multiply
1,107,718.20x = 1,660,390.74 × 791,214.84 - Step 4: Simplify right side
1,107,718.20x = 1,313,725,793,686.58 - Step 5: Solve for x
x = 1,313,725,793,686.58/1,107,718.20 - Step 6: Final answer
x = 1,185,974.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.