Finding the Fourth Proportional to 1,290,461.06, 1,780,332.26 and 738,882.00
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Solution
The fourth proportional to 1,290,461.06, 1,780,332.26 and 738,882.00 is: 1,019,368.59
Step by Step Solution
- Step 1: Write the proportion equation
1,290,461.06 : 1,780,332.26 = 738,882.00 : x - Step 2: Convert to fraction form
1,290,461.06/1,780,332.26 = 738,882.00/x - Step 3: Cross multiply
1,290,461.06x = 1,780,332.26 × 738,882.00 - Step 4: Simplify right side
1,290,461.06x = 1,315,455,466,685.96 - Step 5: Solve for x
x = 1,315,455,466,685.96/1,290,461.06 - Step 6: Final answer
x = 1,019,368.59
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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.