Finding the Fourth Proportional to 1,423,960.75, 2,136,291.05 and 426,688.75
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Solution
The fourth proportional to 1,423,960.75, 2,136,291.05 and 426,688.75 is: 640,137.98
Step by Step Solution
- Step 1: Write the proportion equation
1,423,960.75 : 2,136,291.05 = 426,688.75 : x - Step 2: Convert to fraction form
1,423,960.75/2,136,291.05 = 426,688.75/x - Step 3: Cross multiply
1,423,960.75x = 2,136,291.05 × 426,688.75 - Step 4: Simplify right side
1,423,960.75x = 911,531,357,760.69 - Step 5: Solve for x
x = 911,531,357,760.69/1,423,960.75 - Step 6: Final answer
x = 640,137.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.