Finding the Fourth Proportional to 1,136,972.22, 1,704,558.69 and 426,921.18
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Solution
The fourth proportional to 1,136,972.22, 1,704,558.69 and 426,921.18 is: 640,043.96
Step by Step Solution
- Step 1: Write the proportion equation
1,136,972.22 : 1,704,558.69 = 426,921.18 : x - Step 2: Convert to fraction form
1,136,972.22/1,704,558.69 = 426,921.18/x - Step 3: Cross multiply
1,136,972.22x = 1,704,558.69 × 426,921.18 - Step 4: Simplify right side
1,136,972.22x = 727,712,207,314.05 - Step 5: Solve for x
x = 727,712,207,314.05/1,136,972.22 - Step 6: Final answer
x = 640,043.96
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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.