Finding the Fourth Proportional to 1,257,797.84, 1,735,792.12 and 684,869.36
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Solution
The fourth proportional to 1,257,797.84, 1,735,792.12 and 684,869.36 is: 945,136.65
Step by Step Solution
- Step 1: Write the proportion equation
1,257,797.84 : 1,735,792.12 = 684,869.36 : x - Step 2: Convert to fraction form
1,257,797.84/1,735,792.12 = 684,869.36/x - Step 3: Cross multiply
1,257,797.84x = 1,735,792.12 × 684,869.36 - Step 4: Simplify right side
1,257,797.84x = 1,188,790,838,317.44 - Step 5: Solve for x
x = 1,188,790,838,317.44/1,257,797.84 - Step 6: Final answer
x = 945,136.65
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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.