Finding the Fourth Proportional to 688,245.09, 949,930.02 and 382,426.55
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Solution
The fourth proportional to 688,245.09, 949,930.02 and 382,426.55 is: 527,832.99
Step by Step Solution
- Step 1: Write the proportion equation
688,245.09 : 949,930.02 = 382,426.55 : x - Step 2: Convert to fraction form
688,245.09/949,930.02 = 382,426.55/x - Step 3: Cross multiply
688,245.09x = 949,930.02 × 382,426.55 - Step 4: Simplify right side
688,245.09x = 363,278,457,915.21 - Step 5: Solve for x
x = 363,278,457,915.21/688,245.09 - Step 6: Final answer
x = 527,832.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.