Finding the Fourth Proportional to 920,220.48, 1,269,914.40 and 506,803.68
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Solution
The fourth proportional to 920,220.48, 1,269,914.40 and 506,803.68 is: 699,394.66
Step by Step Solution
- Step 1: Write the proportion equation
920,220.48 : 1,269,914.40 = 506,803.68 : x - Step 2: Convert to fraction form
920,220.48/1,269,914.40 = 506,803.68/x - Step 3: Cross multiply
920,220.48x = 1,269,914.40 × 506,803.68 - Step 4: Simplify right side
920,220.48x = 643,597,291,204.99 - Step 5: Solve for x
x = 643,597,291,204.99/920,220.48 - Step 6: Final answer
x = 699,394.66
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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.