Finding the Fourth Proportional to 620,946.78, 930,757.05 and 354,132.78
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Solution
The fourth proportional to 620,946.78, 930,757.05 and 354,132.78 is: 530,820.99
Step by Step Solution
- Step 1: Write the proportion equation
620,946.78 : 930,757.05 = 354,132.78 : x - Step 2: Convert to fraction form
620,946.78/930,757.05 = 354,132.78/x - Step 3: Cross multiply
620,946.78x = 930,757.05 × 354,132.78 - Step 4: Simplify right side
620,946.78x = 329,611,581,621.10 - Step 5: Solve for x
x = 329,611,581,621.10/620,946.78 - Step 6: Final answer
x = 530,820.99
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1.5x scale
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.