Finding the Fourth Proportional to 1,226,641.20, 1,692,764.68 and 682,765.28
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Solution
The fourth proportional to 1,226,641.20, 1,692,764.68 and 682,765.28 is: 942,215.99
Step by Step Solution
- Step 1: Write the proportion equation
1,226,641.20 : 1,692,764.68 = 682,765.28 : x - Step 2: Convert to fraction form
1,226,641.20/1,692,764.68 = 682,765.28/x - Step 3: Cross multiply
1,226,641.20x = 1,692,764.68 × 682,765.28 - Step 4: Simplify right side
1,226,641.20x = 1,155,760,950,714.31 - Step 5: Solve for x
x = 1,155,760,950,714.31/1,226,641.20 - Step 6: Final answer
x = 942,215.99
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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.