Finding the Fourth Proportional to 1,542,422.16, 2,128,564.38 and 888,686.94
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Solution
The fourth proportional to 1,542,422.16, 2,128,564.38 and 888,686.94 is: 1,226,400.54
Step by Step Solution
- Step 1: Write the proportion equation
1,542,422.16 : 2,128,564.38 = 888,686.94 : x - Step 2: Convert to fraction form
1,542,422.16/2,128,564.38 = 888,686.94/x - Step 3: Cross multiply
1,542,422.16x = 2,128,564.38 × 888,686.94 - Step 4: Simplify right side
1,542,422.16x = 1,891,627,365,455.20 - Step 5: Solve for x
x = 1,891,627,365,455.20/1,542,422.16 - Step 6: Final answer
x = 1,226,400.54
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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.