Finding the Fourth Proportional to 980,331.98, 1,352,984.99 and 550,612.10
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Solution
The fourth proportional to 980,331.98, 1,352,984.99 and 550,612.10 is: 759,915.95
Step by Step Solution
- Step 1: Write the proportion equation
980,331.98 : 1,352,984.99 = 550,612.10 : x - Step 2: Convert to fraction form
980,331.98/1,352,984.99 = 550,612.10/x - Step 3: Cross multiply
980,331.98x = 1,352,984.99 × 550,612.10 - Step 4: Simplify right side
980,331.98x = 744,969,906,612.38 - Step 5: Solve for x
x = 744,969,906,612.38/980,331.98 - Step 6: Final answer
x = 759,915.95
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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.