Finding the Fourth Proportional to 939,680.19, 1,297,383.08 and 557,829.63
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Solution
The fourth proportional to 939,680.19, 1,297,383.08 and 557,829.63 is: 770,175.56
Step by Step Solution
- Step 1: Write the proportion equation
939,680.19 : 1,297,383.08 = 557,829.63 : x - Step 2: Convert to fraction form
939,680.19/1,297,383.08 = 557,829.63/x - Step 3: Cross multiply
939,680.19x = 1,297,383.08 × 557,829.63 - Step 4: Simplify right side
939,680.19x = 723,718,720,695.51 - Step 5: Solve for x
x = 723,718,720,695.51/939,680.19 - Step 6: Final answer
x = 770,175.56
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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.