Finding the Fourth Proportional to 1,321,509.78, 1,823,625.08 and 748,538.46
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Solution
The fourth proportional to 1,321,509.78, 1,823,625.08 and 748,538.46 is: 1,032,949.99
Step by Step Solution
- Step 1: Write the proportion equation
1,321,509.78 : 1,823,625.08 = 748,538.46 : x - Step 2: Convert to fraction form
1,321,509.78/1,823,625.08 = 748,538.46/x - Step 3: Cross multiply
1,321,509.78x = 1,823,625.08 × 748,538.46 - Step 4: Simplify right side
1,321,509.78x = 1,365,053,509,000.58 - Step 5: Solve for x
x = 1,365,053,509,000.58/1,321,509.78 - Step 6: Final answer
x = 1,032,949.99
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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.