Finding the Fourth Proportional to 1,239,340.06, 1,858,971.20 and 681,878.62
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Solution
The fourth proportional to 1,239,340.06, 1,858,971.20 and 681,878.62 is: 1,022,796.53
Step by Step Solution
- Step 1: Write the proportion equation
1,239,340.06 : 1,858,971.20 = 681,878.62 : x - Step 2: Convert to fraction form
1,239,340.06/1,858,971.20 = 681,878.62/x - Step 3: Cross multiply
1,239,340.06x = 1,858,971.20 × 681,878.62 - Step 4: Simplify right side
1,239,340.06x = 1,267,592,716,475.74 - Step 5: Solve for x
x = 1,267,592,716,475.74/1,239,340.06 - Step 6: Final answer
x = 1,022,796.53
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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.