Finding the Fourth Proportional to 876,076.75, 1,208,987.13 and 473,668.75
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Solution
The fourth proportional to 876,076.75, 1,208,987.13 and 473,668.75 is: 653,663.53
Step by Step Solution
- Step 1: Write the proportion equation
876,076.75 : 1,208,987.13 = 473,668.75 : x - Step 2: Convert to fraction form
876,076.75/1,208,987.13 = 473,668.75/x - Step 3: Cross multiply
876,076.75x = 1,208,987.13 × 473,668.75 - Step 4: Simplify right side
876,076.75x = 572,659,422,633.19 - Step 5: Solve for x
x = 572,659,422,633.19/876,076.75 - Step 6: Final answer
x = 653,663.53
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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.