Finding the Fourth Proportional to 427,253.76, 640,873.62 and 174,478.68
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Solution
The fourth proportional to 427,253.76, 640,873.62 and 174,478.68 is: 261,715.15
Step by Step Solution
- Step 1: Write the proportion equation
427,253.76 : 640,873.62 = 174,478.68 : x - Step 2: Convert to fraction form
427,253.76/640,873.62 = 174,478.68/x - Step 3: Cross multiply
427,253.76x = 640,873.62 × 174,478.68 - Step 4: Simplify right side
427,253.76x = 111,818,783,264.42 - Step 5: Solve for x
x = 111,818,783,264.42/427,253.76 - Step 6: Final answer
x = 261,715.15
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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.