Finding the Fourth Proportional to 1,292,657.12, 1,939,195.88 and 381,932.00
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Solution
The fourth proportional to 1,292,657.12, 1,939,195.88 and 381,932.00 is: 572,960.10
Step by Step Solution
- Step 1: Write the proportion equation
1,292,657.12 : 1,939,195.88 = 381,932.00 : x - Step 2: Convert to fraction form
1,292,657.12/1,939,195.88 = 381,932.00/x - Step 3: Cross multiply
1,292,657.12x = 1,939,195.88 × 381,932.00 - Step 4: Simplify right side
1,292,657.12x = 740,640,949,234.52 - Step 5: Solve for x
x = 740,640,949,234.52/1,292,657.12 - Step 6: Final answer
x = 572,960.10
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.