Finding the Fourth Proportional to 1,385,286.64, 2,078,137.76 and 486,570
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Solution
The fourth proportional to 1,385,286.64, 2,078,137.76 and 486,570 is: 729,927.99
Step by Step Solution
- Step 1: Write the proportion equation
1,385,286.64 : 2,078,137.76 = 486,570 : x - Step 2: Convert to fraction form
1,385,286.64/2,078,137.76 = 486,570/x - Step 3: Cross multiply
1,385,286.64x = 2,078,137.76 × 486,570 - Step 4: Simplify right side
1,385,286.64x = 1,011,159,489,883.20 - Step 5: Solve for x
x = 1,011,159,489,883.20/1,385,286.64 - Step 6: Final answer
x = 729,927.99
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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.