Finding the Fourth Proportional to 647,207.70, 970,811.55 and 529,109.70
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Solution
The fourth proportional to 647,207.70, 970,811.55 and 529,109.70 is: 793,664.55
Step by Step Solution
- Step 1: Write the proportion equation
647,207.70 : 970,811.55 = 529,109.70 : x - Step 2: Convert to fraction form
647,207.70/970,811.55 = 529,109.70/x - Step 3: Cross multiply
647,207.70x = 970,811.55 × 529,109.70 - Step 4: Simplify right side
647,207.70x = 513,665,807,977.04 - Step 5: Solve for x
x = 513,665,807,977.04/647,207.70 - Step 6: Final answer
x = 793,664.55
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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.