Finding the Fourth Proportional to 2,752,125.70, 4,128,188.55 and 858,621.10
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Solution
The fourth proportional to 2,752,125.70, 4,128,188.55 and 858,621.10 is: 1,287,931.65
Step by Step Solution
- Step 1: Write the proportion equation
2,752,125.70 : 4,128,188.55 = 858,621.10 : x - Step 2: Convert to fraction form
2,752,125.70/4,128,188.55 = 858,621.10/x - Step 3: Cross multiply
2,752,125.70x = 4,128,188.55 × 858,621.10 - Step 4: Simplify right side
2,752,125.70x = 3,544,549,793,808.41 - Step 5: Solve for x
x = 3,544,549,793,808.41/2,752,125.70 - Step 6: Final answer
x = 1,287,931.65
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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.