Finding the Fourth Proportional to 1,119,661.07, 1,679,492.79 and 278,212.82
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Solution
The fourth proportional to 1,119,661.07, 1,679,492.79 and 278,212.82 is: 417,319.52
Step by Step Solution
- Step 1: Write the proportion equation
1,119,661.07 : 1,679,492.79 = 278,212.82 : x - Step 2: Convert to fraction form
1,119,661.07/1,679,492.79 = 278,212.82/x - Step 3: Cross multiply
1,119,661.07x = 1,679,492.79 × 278,212.82 - Step 4: Simplify right side
1,119,661.07x = 467,256,416,878.10 - Step 5: Solve for x
x = 467,256,416,878.10/1,119,661.07 - Step 6: Final answer
x = 417,319.52
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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.