Finding the Fourth Proportional to 1,102,123.50, 1,653,378.99 and 503,145.20
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Solution
The fourth proportional to 1,102,123.50, 1,653,378.99 and 503,145.20 is: 754,806.25
Step by Step Solution
- Step 1: Write the proportion equation
1,102,123.50 : 1,653,378.99 = 503,145.20 : x - Step 2: Convert to fraction form
1,102,123.50/1,653,378.99 = 503,145.20/x - Step 3: Cross multiply
1,102,123.50x = 1,653,378.99 × 503,145.20 - Step 4: Simplify right side
1,102,123.50x = 831,889,704,846.00 - Step 5: Solve for x
x = 831,889,704,846.00/1,102,123.50 - Step 6: Final answer
x = 754,806.25
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1.5x scale
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.