Finding the Fourth Proportional to 1,556,257.68, 2,147,635.60 and 840,865.68
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Solution
The fourth proportional to 1,556,257.68, 2,147,635.60 and 840,865.68 is: 1,160,394.64
Step by Step Solution
- Step 1: Write the proportion equation
1,556,257.68 : 2,147,635.60 = 840,865.68 : x - Step 2: Convert to fraction form
1,556,257.68/2,147,635.60 = 840,865.68/x - Step 3: Cross multiply
1,556,257.68x = 2,147,635.60 × 840,865.68 - Step 4: Simplify right side
1,556,257.68x = 1,805,873,069,186.21 - Step 5: Solve for x
x = 1,805,873,069,186.21/1,556,257.68 - Step 6: Final answer
x = 1,160,394.64
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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.