Finding the Fourth Proportional to 1,025,762.14, 1,539,053.34 and 427,136.50
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Solution
The fourth proportional to 1,025,762.14, 1,539,053.34 and 427,136.50 is: 640,875.53
Step by Step Solution
- Step 1: Write the proportion equation
1,025,762.14 : 1,539,053.34 = 427,136.50 : x - Step 2: Convert to fraction form
1,025,762.14/1,539,053.34 = 427,136.50/x - Step 3: Cross multiply
1,025,762.14x = 1,539,053.34 × 427,136.50 - Step 4: Simplify right side
1,025,762.14x = 657,385,856,960.91 - Step 5: Solve for x
x = 657,385,856,960.91/1,025,762.14 - Step 6: Final answer
x = 640,875.53
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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.