Finding the Fourth Proportional to 1,448,748.30, 1,998,867.49 and 905,435.99
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Solution
The fourth proportional to 1,448,748.30, 1,998,867.49 and 905,435.99 is: 1,249,248.45
Step by Step Solution
- Step 1: Write the proportion equation
1,448,748.30 : 1,998,867.49 = 905,435.99 : x - Step 2: Convert to fraction form
1,448,748.30/1,998,867.49 = 905,435.99/x - Step 3: Cross multiply
1,448,748.30x = 1,998,867.49 × 905,435.99 - Step 4: Simplify right side
1,448,748.30x = 1,809,846,564,686.97 - Step 5: Solve for x
x = 1,809,846,564,686.97/1,448,748.30 - Step 6: Final answer
x = 1,249,248.45
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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.