Finding the Fourth Proportional to 2,091,117.13, 2,880,364.71 and 1,478,215.87
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Solution
The fourth proportional to 2,091,117.13, 2,880,364.71 and 1,478,215.87 is: 2,036,136.94
Step by Step Solution
- Step 1: Write the proportion equation
2,091,117.13 : 2,880,364.71 = 1,478,215.87 : x - Step 2: Convert to fraction form
2,091,117.13/2,880,364.71 = 1,478,215.87/x - Step 3: Cross multiply
2,091,117.13x = 2,880,364.71 × 1,478,215.87 - Step 4: Simplify right side
2,091,117.13x = 4,257,800,825,709.95 - Step 5: Solve for x
x = 4,257,800,825,709.95/2,091,117.13 - Step 6: Final answer
x = 2,036,136.94
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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.