Finding the Fourth Proportional to 4,128,981.94, 6,193,472.91 and 1,289,337.40
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Solution
The fourth proportional to 4,128,981.94, 6,193,472.91 and 1,289,337.40 is: 1,934,006.10
Step by Step Solution
- Step 1: Write the proportion equation
4,128,981.94 : 6,193,472.91 = 1,289,337.40 : x - Step 2: Convert to fraction form
4,128,981.94/6,193,472.91 = 1,289,337.40/x - Step 3: Cross multiply
4,128,981.94x = 6,193,472.91 × 1,289,337.40 - Step 4: Simplify right side
4,128,981.94x = 7,985,476,258,749.83 - Step 5: Solve for x
x = 7,985,476,258,749.83/4,128,981.94 - Step 6: Final answer
x = 1,934,006.10
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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.