Finding the Fourth Proportional to 2,640,202.21, 3,643,660.43 and 1,478,671.93
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Solution
The fourth proportional to 2,640,202.21, 3,643,660.43 and 1,478,671.93 is: 2,040,668.85
Step by Step Solution
- Step 1: Write the proportion equation
2,640,202.21 : 3,643,660.43 = 1,478,671.93 : x - Step 2: Convert to fraction form
2,640,202.21/3,643,660.43 = 1,478,671.93/x - Step 3: Cross multiply
2,640,202.21x = 3,643,660.43 × 1,478,671.93 - Step 4: Simplify right side
2,640,202.21x = 5,387,778,400,292.73 - Step 5: Solve for x
x = 5,387,778,400,292.73/2,640,202.21 - Step 6: Final answer
x = 2,040,668.85
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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.