Finding the Fourth Proportional to 1,221,363.02, 1,685,507.98 and 677,481.08
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Solution
The fourth proportional to 1,221,363.02, 1,685,507.98 and 677,481.08 is: 934,938.87
Step by Step Solution
- Step 1: Write the proportion equation
1,221,363.02 : 1,685,507.98 = 677,481.08 : x - Step 2: Convert to fraction form
1,221,363.02/1,685,507.98 = 677,481.08/x - Step 3: Cross multiply
1,221,363.02x = 1,685,507.98 × 677,481.08 - Step 4: Simplify right side
1,221,363.02x = 1,141,899,766,639.02 - Step 5: Solve for x
x = 1,141,899,766,639.02/1,221,363.02 - Step 6: Final answer
x = 934,938.87
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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.