Finding the Fourth Proportional to 1,539,964.38, 2,125,089.86 and 851,591.54
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Solution
The fourth proportional to 1,539,964.38, 2,125,089.86 and 851,591.54 is: 1,175,162.60
Step by Step Solution
- Step 1: Write the proportion equation
1,539,964.38 : 2,125,089.86 = 851,591.54 : x - Step 2: Convert to fraction form
1,539,964.38/2,125,089.86 = 851,591.54/x - Step 3: Cross multiply
1,539,964.38x = 2,125,089.86 × 851,591.54 - Step 4: Simplify right side
1,539,964.38x = 1,809,708,546,515.78 - Step 5: Solve for x
x = 1,809,708,546,515.78/1,539,964.38 - Step 6: Final answer
x = 1,175,162.60
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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.