Finding the Fourth Proportional to 1,189,503.62, 1,641,470.98 and 645,627.84
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Solution
The fourth proportional to 1,189,503.62, 1,641,470.98 and 645,627.84 is: 890,942.53
Step by Step Solution
- Step 1: Write the proportion equation
1,189,503.62 : 1,641,470.98 = 645,627.84 : x - Step 2: Convert to fraction form
1,189,503.62/1,641,470.98 = 645,627.84/x - Step 3: Cross multiply
1,189,503.62x = 1,641,470.98 × 645,627.84 - Step 4: Simplify right side
1,189,503.62x = 1,059,779,363,240.08 - Step 5: Solve for x
x = 1,059,779,363,240.08/1,189,503.62 - Step 6: Final answer
x = 890,942.53
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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.