Finding the Fourth Proportional to 499,276.20, 748,136.70 and 432,402.60
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Solution
The fourth proportional to 499,276.20, 748,136.70 and 432,402.60 is: 647,930.45
Step by Step Solution
- Step 1: Write the proportion equation
499,276.20 : 748,136.70 = 432,402.60 : x - Step 2: Convert to fraction form
499,276.20/748,136.70 = 432,402.60/x - Step 3: Cross multiply
499,276.20x = 748,136.70 × 432,402.60 - Step 4: Simplify right side
499,276.20x = 323,496,254,235.42 - Step 5: Solve for x
x = 323,496,254,235.42/499,276.20 - Step 6: Final answer
x = 647,930.45
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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.