Finding the Fourth Proportional to 1,103,607.99, 1,522,984.28 and 644,748.66
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Solution
The fourth proportional to 1,103,607.99, 1,522,984.28 and 644,748.66 is: 889,756.22
Step by Step Solution
- Step 1: Write the proportion equation
1,103,607.99 : 1,522,984.28 = 644,748.66 : x - Step 2: Convert to fraction form
1,103,607.99/1,522,984.28 = 644,748.66/x - Step 3: Cross multiply
1,103,607.99x = 1,522,984.28 × 644,748.66 - Step 4: Simplify right side
1,103,607.99x = 981,942,070,507.32 - Step 5: Solve for x
x = 981,942,070,507.32/1,103,607.99 - Step 6: Final answer
x = 889,756.22
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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.