Finding the Fourth Proportional to 448,315.61, 618,746.78 and 276,334.79
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Solution
The fourth proportional to 448,315.61, 618,746.78 and 276,334.79 is: 381,385.92
Step by Step Solution
- Step 1: Write the proportion equation
448,315.61 : 618,746.78 = 276,334.79 : x - Step 2: Convert to fraction form
448,315.61/618,746.78 = 276,334.79/x - Step 3: Cross multiply
448,315.61x = 618,746.78 × 276,334.79 - Step 4: Simplify right side
448,315.61x = 170,981,259,111.58 - Step 5: Solve for x
x = 170,981,259,111.58/448,315.61 - Step 6: Final answer
x = 381,385.92
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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.