Finding the Fourth Proportional to 1,383,404.70, 2,075,107.05 and 386,132.70
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Solution
The fourth proportional to 1,383,404.70, 2,075,107.05 and 386,132.70 is: 579,199.05
Step by Step Solution
- Step 1: Write the proportion equation
1,383,404.70 : 2,075,107.05 = 386,132.70 : x - Step 2: Convert to fraction form
1,383,404.70/2,075,107.05 = 386,132.70/x - Step 3: Cross multiply
1,383,404.70x = 2,075,107.05 × 386,132.70 - Step 4: Simplify right side
1,383,404.70x = 801,266,688,005.54 - Step 5: Solve for x
x = 801,266,688,005.54/1,383,404.70 - Step 6: Final answer
x = 579,199.05
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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.