Finding the Fourth Proportional to 1,313,792.80, 1,970,228.40 and 682,496.80
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Solution
The fourth proportional to 1,313,792.80, 1,970,228.40 and 682,496.80 is: 1,023,505.82
Step by Step Solution
- Step 1: Write the proportion equation
1,313,792.80 : 1,970,228.40 = 682,496.80 : x - Step 2: Convert to fraction form
1,313,792.80/1,970,228.40 = 682,496.80/x - Step 3: Cross multiply
1,313,792.80x = 1,970,228.40 × 682,496.80 - Step 4: Simplify right side
1,313,792.80x = 1,344,674,578,269.12 - Step 5: Solve for x
x = 1,344,674,578,269.12/1,313,792.80 - Step 6: Final answer
x = 1,023,505.82
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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.