Finding the Fourth Proportional to 1,057,124.79, 1,458,109.62 and 674,979.21
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Solution
The fourth proportional to 1,057,124.79, 1,458,109.62 and 674,979.21 is: 931,009.93
Step by Step Solution
- Step 1: Write the proportion equation
1,057,124.79 : 1,458,109.62 = 674,979.21 : x - Step 2: Convert to fraction form
1,057,124.79/1,458,109.62 = 674,979.21/x - Step 3: Cross multiply
1,057,124.79x = 1,458,109.62 × 674,979.21 - Step 4: Simplify right side
1,057,124.79x = 984,193,679,401.00 - Step 5: Solve for x
x = 984,193,679,401.00/1,057,124.79 - Step 6: Final answer
x = 931,009.93
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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.