Finding the Fourth Proportional to 2,182,823.06, 3,012,386.58 and 1,215,953.09
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Solution
The fourth proportional to 2,182,823.06, 3,012,386.58 and 1,215,953.09 is: 1,678,065.82
Step by Step Solution
- Step 1: Write the proportion equation
2,182,823.06 : 3,012,386.58 = 1,215,953.09 : x - Step 2: Convert to fraction form
2,182,823.06/3,012,386.58 = 1,215,953.09/x - Step 3: Cross multiply
2,182,823.06x = 3,012,386.58 × 1,215,953.09 - Step 4: Simplify right side
2,182,823.06x = 3,662,920,770,225.53 - Step 5: Solve for x
x = 3,662,920,770,225.53/2,182,823.06 - Step 6: Final answer
x = 1,678,065.82
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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.