Finding the Fourth Proportional to 2,953,651.20, 4,430,476.80 and 959,107.20
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Solution
The fourth proportional to 2,953,651.20, 4,430,476.80 and 959,107.20 is: 1,438,660.80
Step by Step Solution
- Step 1: Write the proportion equation
2,953,651.20 : 4,430,476.80 = 959,107.20 : x - Step 2: Convert to fraction form
2,953,651.20/4,430,476.80 = 959,107.20/x - Step 3: Cross multiply
2,953,651.20x = 4,430,476.80 × 959,107.20 - Step 4: Simplify right side
2,953,651.20x = 4,249,302,198,312.96 - Step 5: Solve for x
x = 4,249,302,198,312.96/2,953,651.20 - Step 6: Final answer
x = 1,438,660.80
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1.5x scale
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.