Finding the Fourth Proportional to 1,900,154.78, 2,622,216.12 and 1,028,990.97
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Solution
The fourth proportional to 1,900,154.78, 2,622,216.12 and 1,028,990.97 is: 1,420,008.91
Step by Step Solution
- Step 1: Write the proportion equation
1,900,154.78 : 2,622,216.12 = 1,028,990.97 : x - Step 2: Convert to fraction form
1,900,154.78/2,622,216.12 = 1,028,990.97/x - Step 3: Cross multiply
1,900,154.78x = 2,622,216.12 × 1,028,990.97 - Step 4: Simplify right side
1,900,154.78x = 2,698,236,708,868.44 - Step 5: Solve for x
x = 2,698,236,708,868.44/1,900,154.78 - Step 6: Final answer
x = 1,420,008.91
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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.