Finding the Fourth Proportional to 2,639,385.24, 3,641,505.12 and 1,477,660.80
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Solution
The fourth proportional to 2,639,385.24, 3,641,505.12 and 1,477,660.80 is: 2,038,697.98
Step by Step Solution
- Step 1: Write the proportion equation
2,639,385.24 : 3,641,505.12 = 1,477,660.80 : x - Step 2: Convert to fraction form
2,639,385.24/3,641,505.12 = 1,477,660.80/x - Step 3: Cross multiply
2,639,385.24x = 3,641,505.12 × 1,477,660.80 - Step 4: Simplify right side
2,639,385.24x = 5,380,909,368,823.30 - Step 5: Solve for x
x = 5,380,909,368,823.30/2,639,385.24 - Step 6: Final answer
x = 2,038,697.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.