Finding the Fourth Proportional to 557,992.46, 770,089.80 and 316,249.09
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Solution
The fourth proportional to 557,992.46, 770,089.80 and 316,249.09 is: 436,457.87
Step by Step Solution
- Step 1: Write the proportion equation
557,992.46 : 770,089.80 = 316,249.09 : x - Step 2: Convert to fraction form
557,992.46/770,089.80 = 316,249.09/x - Step 3: Cross multiply
557,992.46x = 770,089.80 × 316,249.09 - Step 4: Simplify right side
557,992.46x = 243,540,198,468.28 - Step 5: Solve for x
x = 243,540,198,468.28/557,992.46 - Step 6: Final answer
x = 436,457.87
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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.