Finding the Fourth Proportional to 1,556,765.07, 2,148,287.05 and 912,614.28
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Solution
The fourth proportional to 1,556,765.07, 2,148,287.05 and 912,614.28 is: 1,259,379.12
Step by Step Solution
- Step 1: Write the proportion equation
1,556,765.07 : 2,148,287.05 = 912,614.28 : x - Step 2: Convert to fraction form
1,556,765.07/2,148,287.05 = 912,614.28/x - Step 3: Cross multiply
1,556,765.07x = 2,148,287.05 × 912,614.28 - Step 4: Simplify right side
1,556,765.07x = 1,960,557,424,064.57 - Step 5: Solve for x
x = 1,960,557,424,064.57/1,556,765.07 - Step 6: Final answer
x = 1,259,379.12
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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.