Finding the Fourth Proportional to 2,207,330.78, 3,046,948.88 and 1,289,858.13
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Solution
The fourth proportional to 2,207,330.78, 3,046,948.88 and 1,289,858.13 is: 1,780,490.64
Step by Step Solution
- Step 1: Write the proportion equation
2,207,330.78 : 3,046,948.88 = 1,289,858.13 : x - Step 2: Convert to fraction form
2,207,330.78/3,046,948.88 = 1,289,858.13/x - Step 3: Cross multiply
2,207,330.78x = 3,046,948.88 × 1,289,858.13 - Step 4: Simplify right side
2,207,330.78x = 3,930,131,778,113.10 - Step 5: Solve for x
x = 3,930,131,778,113.10/2,207,330.78 - Step 6: Final answer
x = 1,780,490.64
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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.