Finding the Fourth Proportional to 1,121,101.79, 1,680,837.98 and 446,980.91
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Solution
The fourth proportional to 1,121,101.79, 1,680,837.98 and 446,980.91 is: 670,146.54
Step by Step Solution
- Step 1: Write the proportion equation
1,121,101.79 : 1,680,837.98 = 446,980.91 : x - Step 2: Convert to fraction form
1,121,101.79/1,680,837.98 = 446,980.91/x - Step 3: Cross multiply
1,121,101.79x = 1,680,837.98 × 446,980.91 - Step 4: Simplify right side
1,121,101.79x = 751,302,479,223.87 - Step 5: Solve for x
x = 751,302,479,223.87/1,121,101.79 - Step 6: Final answer
x = 670,146.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.