Finding the Fourth Proportional to 884,120.13, 1,220,189.49 and 496,936.08
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Solution
The fourth proportional to 884,120.13, 1,220,189.49 and 496,936.08 is: 685,830.08
Step by Step Solution
- Step 1: Write the proportion equation
884,120.13 : 1,220,189.49 = 496,936.08 : x - Step 2: Convert to fraction form
884,120.13/1,220,189.49 = 496,936.08/x - Step 3: Cross multiply
884,120.13x = 1,220,189.49 × 496,936.08 - Step 4: Simplify right side
884,120.13x = 606,356,182,017.80 - Step 5: Solve for x
x = 606,356,182,017.80/884,120.13 - Step 6: Final answer
x = 685,830.08
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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.