Finding the Fourth Proportional to 752,135.60, 1,128,203.40 and 453,537.20
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Solution
The fourth proportional to 752,135.60, 1,128,203.40 and 453,537.20 is: 680,305.80
Step by Step Solution
- Step 1: Write the proportion equation
752,135.60 : 1,128,203.40 = 453,537.20 : x - Step 2: Convert to fraction form
752,135.60/1,128,203.40 = 453,537.20/x - Step 3: Cross multiply
752,135.60x = 1,128,203.40 × 453,537.20 - Step 4: Simplify right side
752,135.60x = 511,682,211,066.48 - Step 5: Solve for x
x = 511,682,211,066.48/752,135.60 - Step 6: Final answer
x = 680,305.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.