Finding the Fourth Proportional to 3,259,878.65, 4,498,407.53 and 1,809,459.91
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Solution
The fourth proportional to 3,259,878.65, 4,498,407.53 and 1,809,459.91 is: 2,496,929.78
Step by Step Solution
- Step 1: Write the proportion equation
3,259,878.65 : 4,498,407.53 = 1,809,459.91 : x - Step 2: Convert to fraction form
3,259,878.65/4,498,407.53 = 1,809,459.91/x - Step 3: Cross multiply
3,259,878.65x = 4,498,407.53 × 1,809,459.91 - Step 4: Simplify right side
3,259,878.65x = 8,139,688,087,738.31 - Step 5: Solve for x
x = 8,139,688,087,738.31/3,259,878.65 - Step 6: Final answer
x = 2,496,929.78
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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.