Finding the Fourth Proportional to 2,109,155.14, 3,163,896.68 and 689,354.74
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Solution
The fourth proportional to 2,109,155.14, 3,163,896.68 and 689,354.74 is: 1,034,085.70
Step by Step Solution
- Step 1: Write the proportion equation
2,109,155.14 : 3,163,896.68 = 689,354.74 : x - Step 2: Convert to fraction form
2,109,155.14/3,163,896.68 = 689,354.74/x - Step 3: Cross multiply
2,109,155.14x = 3,163,896.68 × 689,354.74 - Step 4: Simplify right side
2,109,155.14x = 2,181,047,161,871.75 - Step 5: Solve for x
x = 2,181,047,161,871.75/2,109,155.14 - Step 6: Final answer
x = 1,034,085.70
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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.