Finding the Fourth Proportional to 2,147,211.99, 2,963,155.91 and 1,180,348.47
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Solution
The fourth proportional to 2,147,211.99, 2,963,155.91 and 1,180,348.47 is: 1,628,882.73
Step by Step Solution
- Step 1: Write the proportion equation
2,147,211.99 : 2,963,155.91 = 1,180,348.47 : x - Step 2: Convert to fraction form
2,147,211.99/2,963,155.91 = 1,180,348.47/x - Step 3: Cross multiply
2,147,211.99x = 2,963,155.91 × 1,180,348.47 - Step 4: Simplify right side
2,147,211.99x = 3,497,556,538,838.22 - Step 5: Solve for x
x = 3,497,556,538,838.22/2,147,211.99 - Step 6: Final answer
x = 1,628,882.73
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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.