Finding the Fourth Proportional to 621,279.38, 931,779.65 and 242,069.99
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Solution
The fourth proportional to 621,279.38, 931,779.65 and 242,069.99 is: 363,050.65
Step by Step Solution
- Step 1: Write the proportion equation
621,279.38 : 931,779.65 = 242,069.99 : x - Step 2: Convert to fraction form
621,279.38/931,779.65 = 242,069.99/x - Step 3: Cross multiply
621,279.38x = 931,779.65 × 242,069.99 - Step 4: Simplify right side
621,279.38x = 225,555,886,503.98 - Step 5: Solve for x
x = 225,555,886,503.98/621,279.38 - Step 6: Final answer
x = 363,050.65
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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.