Finding the Fourth Proportional to 457,609.96, 686,418.99 and 187,886.44
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Solution
The fourth proportional to 457,609.96, 686,418.99 and 187,886.44 is: 281,831.32
Step by Step Solution
- Step 1: Write the proportion equation
457,609.96 : 686,418.99 = 187,886.44 : x - Step 2: Convert to fraction form
457,609.96/686,418.99 = 187,886.44/x - Step 3: Cross multiply
457,609.96x = 686,418.99 × 187,886.44 - Step 4: Simplify right side
457,609.96x = 128,968,820,379.50 - Step 5: Solve for x
x = 128,968,820,379.50/457,609.96 - Step 6: Final answer
x = 281,831.32
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1.5x scale
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.