Finding the Fourth Proportional to 1,720,441.84, 2,370,708.28 and 1,330,890.88
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Solution
The fourth proportional to 1,720,441.84, 2,370,708.28 and 1,330,890.88 is: 1,833,920.77
Step by Step Solution
- Step 1: Write the proportion equation
1,720,441.84 : 2,370,708.28 = 1,330,890.88 : x - Step 2: Convert to fraction form
1,720,441.84/2,370,708.28 = 1,330,890.88/x - Step 3: Cross multiply
1,720,441.84x = 2,370,708.28 × 1,330,890.88 - Step 4: Simplify right side
1,720,441.84x = 3,155,154,028,992.49 - Step 5: Solve for x
x = 3,155,154,028,992.49/1,720,441.84 - Step 6: Final answer
x = 1,833,920.77
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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.