Finding the Fourth Proportional to 1,518,968.09, 2,278,951.04 and 621,164.95
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Solution
The fourth proportional to 1,518,968.09, 2,278,951.04 and 621,164.95 is: 931,951.44
Step by Step Solution
- Step 1: Write the proportion equation
1,518,968.09 : 2,278,951.04 = 621,164.95 : x - Step 2: Convert to fraction form
1,518,968.09/2,278,951.04 = 621,164.95/x - Step 3: Cross multiply
1,518,968.09x = 2,278,951.04 × 621,164.95 - Step 4: Simplify right side
1,518,968.09x = 1,415,604,500,010.85 - Step 5: Solve for x
x = 1,415,604,500,010.85/1,518,968.09 - Step 6: Final answer
x = 931,951.44
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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.