Finding the Fourth Proportional to 877,765.12, 1,211,291.04 and 520,069.12
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Solution
The fourth proportional to 877,765.12, 1,211,291.04 and 520,069.12 is: 717,680.68
Step by Step Solution
- Step 1: Write the proportion equation
877,765.12 : 1,211,291.04 = 520,069.12 : x - Step 2: Convert to fraction form
877,765.12/1,211,291.04 = 520,069.12/x - Step 3: Cross multiply
877,765.12x = 1,211,291.04 × 520,069.12 - Step 4: Simplify right side
877,765.12x = 629,955,065,236.69 - Step 5: Solve for x
x = 629,955,065,236.69/877,765.12 - Step 6: Final answer
x = 717,680.68
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1.5x scale
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.