Finding the Fourth Proportional to 1,916,929.73, 2,645,320.37 and 1,057,489.76
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Solution
The fourth proportional to 1,916,929.73, 2,645,320.37 and 1,057,489.76 is: 1,459,312.34
Step by Step Solution
- Step 1: Write the proportion equation
1,916,929.73 : 2,645,320.37 = 1,057,489.76 : x - Step 2: Convert to fraction form
1,916,929.73/2,645,320.37 = 1,057,489.76/x - Step 3: Cross multiply
1,916,929.73x = 2,645,320.37 × 1,057,489.76 - Step 4: Simplify right side
1,916,929.73x = 2,797,399,204,520.26 - Step 5: Solve for x
x = 2,797,399,204,520.26/1,916,929.73 - Step 6: Final answer
x = 1,459,312.34
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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.