Finding the Fourth Proportional to 2,085,661.85, 3,128,931.99 and 719,559.59
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Solution
The fourth proportional to 2,085,661.85, 3,128,931.99 and 719,559.59 is: 1,079,490.91
Step by Step Solution
- Step 1: Write the proportion equation
2,085,661.85 : 3,128,931.99 = 719,559.59 : x - Step 2: Convert to fraction form
2,085,661.85/3,128,931.99 = 719,559.59/x - Step 3: Cross multiply
2,085,661.85x = 3,128,931.99 × 719,559.59 - Step 4: Simplify right side
2,085,661.85x = 2,251,453,004,217.62 - Step 5: Solve for x
x = 2,251,453,004,217.62/2,085,661.85 - Step 6: Final answer
x = 1,079,490.91
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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.