Finding the Fourth Proportional to 1,192,840.88, 1,789,279.88 and 1,132,278.75
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Solution
The fourth proportional to 1,192,840.88, 1,789,279.88 and 1,132,278.75 is: 1,698,435.75
Step by Step Solution
- Step 1: Write the proportion equation
1,192,840.88 : 1,789,279.88 = 1,132,278.75 : x - Step 2: Convert to fraction form
1,192,840.88/1,789,279.88 = 1,132,278.75/x - Step 3: Cross multiply
1,192,840.88x = 1,789,279.88 × 1,132,278.75 - Step 4: Simplify right side
1,192,840.88x = 2,025,963,580,265.16 - Step 5: Solve for x
x = 2,025,963,580,265.16/1,192,840.88 - Step 6: Final answer
x = 1,698,435.75
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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.