Finding the Fourth Proportional to 1,128,114.18, 1,556,545.72 and 668,995.44
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Solution
The fourth proportional to 1,128,114.18, 1,556,545.72 and 668,995.44 is: 923,064.36
Step by Step Solution
- Step 1: Write the proportion equation
1,128,114.18 : 1,556,545.72 = 668,995.44 : x - Step 2: Convert to fraction form
1,128,114.18/1,556,545.72 = 668,995.44/x - Step 3: Cross multiply
1,128,114.18x = 1,556,545.72 × 668,995.44 - Step 4: Simplify right side
1,128,114.18x = 1,041,321,988,831.52 - Step 5: Solve for x
x = 1,041,321,988,831.52/1,128,114.18 - Step 6: Final answer
x = 923,064.36
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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.