Finding the Fourth Proportional to 1,313,169.12, 1,812,173.33 and 709,557.12
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Solution
The fourth proportional to 1,313,169.12, 1,812,173.33 and 709,557.12 is: 979,188.80
Step by Step Solution
- Step 1: Write the proportion equation
1,313,169.12 : 1,812,173.33 = 709,557.12 : x - Step 2: Convert to fraction form
1,313,169.12/1,812,173.33 = 709,557.12/x - Step 3: Cross multiply
1,313,169.12x = 1,812,173.33 × 709,557.12 - Step 4: Simplify right side
1,313,169.12x = 1,285,840,490,749.50 - Step 5: Solve for x
x = 1,285,840,490,749.50/1,313,169.12 - Step 6: Final answer
x = 979,188.80
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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.