Finding the Fourth Proportional to 2,250,987.12, 3,106,360.80 and 1,232,391.60
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Solution
The fourth proportional to 2,250,987.12, 3,106,360.80 and 1,232,391.60 is: 1,700,699.63
Step by Step Solution
- Step 1: Write the proportion equation
2,250,987.12 : 3,106,360.80 = 1,232,391.60 : x - Step 2: Convert to fraction form
2,250,987.12/3,106,360.80 = 1,232,391.60/x - Step 3: Cross multiply
2,250,987.12x = 3,106,360.80 × 1,232,391.60 - Step 4: Simplify right side
2,250,987.12x = 3,828,252,956,489.28 - Step 5: Solve for x
x = 3,828,252,956,489.28/2,250,987.12 - Step 6: Final answer
x = 1,700,699.63
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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.