Finding the Fourth Proportional to 2,122,876.07, 2,929,491.63 and 1,155,985.14
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Solution
The fourth proportional to 2,122,876.07, 2,929,491.63 and 1,155,985.14 is: 1,595,217.38
Step by Step Solution
- Step 1: Write the proportion equation
2,122,876.07 : 2,929,491.63 = 1,155,985.14 : x - Step 2: Convert to fraction form
2,122,876.07/2,929,491.63 = 1,155,985.14/x - Step 3: Cross multiply
2,122,876.07x = 2,929,491.63 × 1,155,985.14 - Step 4: Simplify right side
2,122,876.07x = 3,386,448,792,034.38 - Step 5: Solve for x
x = 3,386,448,792,034.38/2,122,876.07 - Step 6: Final answer
x = 1,595,217.38
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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.