Finding the Fourth Proportional to 1,081,248.78, 1,621,373.94 and 397,963.99
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Solution
The fourth proportional to 1,081,248.78, 1,621,373.94 and 397,963.99 is: 596,762.25
Step by Step Solution
- Step 1: Write the proportion equation
1,081,248.78 : 1,621,373.94 = 397,963.99 : x - Step 2: Convert to fraction form
1,081,248.78/1,621,373.94 = 397,963.99/x - Step 3: Cross multiply
1,081,248.78x = 1,621,373.94 × 397,963.99 - Step 4: Simplify right side
1,081,248.78x = 645,248,448,524.57 - Step 5: Solve for x
x = 645,248,448,524.57/1,081,248.78 - Step 6: Final answer
x = 596,762.25
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.