Finding the Fourth Proportional to 1,648,145.99, 2,269,154.13 and 1,285,103.99
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Solution
The fourth proportional to 1,648,145.99, 2,269,154.13 and 1,285,103.99 is: 1,769,320.83
Step by Step Solution
- Step 1: Write the proportion equation
1,648,145.99 : 2,269,154.13 = 1,285,103.99 : x - Step 2: Convert to fraction form
1,648,145.99/2,269,154.13 = 1,285,103.99/x - Step 3: Cross multiply
1,648,145.99x = 2,269,154.13 × 1,285,103.99 - Step 4: Simplify right side
1,648,145.99x = 2,916,099,026,387.98 - Step 5: Solve for x
x = 2,916,099,026,387.98/1,648,145.99 - Step 6: Final answer
x = 1,769,320.83
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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.