Finding the Fourth Proportional to 2,912,322.20, 4,368,188.04 and 782,129.52
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Solution
The fourth proportional to 2,912,322.20, 4,368,188.04 and 782,129.52 is: 1,173,114.99
Step by Step Solution
- Step 1: Write the proportion equation
2,912,322.20 : 4,368,188.04 = 782,129.52 : x - Step 2: Convert to fraction form
2,912,322.20/4,368,188.04 = 782,129.52/x - Step 3: Cross multiply
2,912,322.20x = 4,368,188.04 × 782,129.52 - Step 4: Simplify right side
2,912,322.20x = 3,416,488,814,994.94 - Step 5: Solve for x
x = 3,416,488,814,994.94/2,912,322.20 - Step 6: Final answer
x = 1,173,114.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.