Finding the Fourth Proportional to 1,018,121.60, 1,525,763.70 and 765,106.62
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Solution
The fourth proportional to 1,018,121.60, 1,525,763.70 and 765,106.62 is: 1,146,593.80
Step by Step Solution
- Step 1: Write the proportion equation
1,018,121.60 : 1,525,763.70 = 765,106.62 : x - Step 2: Convert to fraction form
1,018,121.60/1,525,763.70 = 765,106.62/x - Step 3: Cross multiply
1,018,121.60x = 1,525,763.70 × 765,106.62 - Step 4: Simplify right side
1,018,121.60x = 1,167,371,907,425.69 - Step 5: Solve for x
x = 1,167,371,907,425.69/1,018,121.60 - Step 6: Final answer
x = 1,146,593.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.