Finding the Fourth Proportional to 2,197,859.12, 3,032,356.92 and 1,230,858.80
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Solution
The fourth proportional to 2,197,859.12, 3,032,356.92 and 1,230,858.80 is: 1,698,199.47
Step by Step Solution
- Step 1: Write the proportion equation
2,197,859.12 : 3,032,356.92 = 1,230,858.80 : x - Step 2: Convert to fraction form
2,197,859.12/3,032,356.92 = 1,230,858.80/x - Step 3: Cross multiply
2,197,859.12x = 3,032,356.92 × 1,230,858.80 - Step 4: Simplify right side
2,197,859.12x = 3,732,403,199,722.90 - Step 5: Solve for x
x = 3,732,403,199,722.90/2,197,859.12 - Step 6: Final answer
x = 1,698,199.47
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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.