Finding the Fourth Proportional to 1,438,487.05, 2,157,489.99 and 527,481.26
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Solution
The fourth proportional to 1,438,487.05, 2,157,489.99 and 527,481.26 is: 791,133.67
Step by Step Solution
- Step 1: Write the proportion equation
1,438,487.05 : 2,157,489.99 = 527,481.26 : x - Step 2: Convert to fraction form
1,438,487.05/2,157,489.99 = 527,481.26/x - Step 3: Cross multiply
1,438,487.05x = 2,157,489.99 × 527,481.26 - Step 4: Simplify right side
1,438,487.05x = 1,138,035,535,725.18 - Step 5: Solve for x
x = 1,138,035,535,725.18/1,438,487.05 - Step 6: Final answer
x = 791,133.67
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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.