Finding the Fourth Proportional to 556,997.20, 835,495.80 and 521,567.80
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Solution
The fourth proportional to 556,997.20, 835,495.80 and 521,567.80 is: 782,351.70
Step by Step Solution
- Step 1: Write the proportion equation
556,997.20 : 835,495.80 = 521,567.80 : x - Step 2: Convert to fraction form
556,997.20/835,495.80 = 521,567.80/x - Step 3: Cross multiply
556,997.20x = 835,495.80 × 521,567.80 - Step 4: Simplify right side
556,997.20x = 435,767,706,315.24 - Step 5: Solve for x
x = 435,767,706,315.24/556,997.20 - Step 6: Final answer
x = 782,351.70
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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.