Finding the Fourth Proportional to 2,620,944.99, 3,931,414.43 and 823,985.51
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Solution
The fourth proportional to 2,620,944.99, 3,931,414.43 and 823,985.51 is: 1,235,977.30
Step by Step Solution
- Step 1: Write the proportion equation
2,620,944.99 : 3,931,414.43 = 823,985.51 : x - Step 2: Convert to fraction form
2,620,944.99/3,931,414.43 = 823,985.51/x - Step 3: Cross multiply
2,620,944.99x = 3,931,414.43 × 823,985.51 - Step 4: Simplify right side
2,620,944.99x = 3,239,428,500,347.91 - Step 5: Solve for x
x = 3,239,428,500,347.91/2,620,944.99 - Step 6: Final answer
x = 1,235,977.30
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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.