Finding the Fourth Proportional to 430,485.28, 645,720.96 and 193,660.48
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Solution
The fourth proportional to 430,485.28, 645,720.96 and 193,660.48 is: 290,487.59
Step by Step Solution
- Step 1: Write the proportion equation
430,485.28 : 645,720.96 = 193,660.48 : x - Step 2: Convert to fraction form
430,485.28/645,720.96 = 193,660.48/x - Step 3: Cross multiply
430,485.28x = 645,720.96 × 193,660.48 - Step 4: Simplify right side
430,485.28x = 125,050,631,059.66 - Step 5: Solve for x
x = 125,050,631,059.66/430,485.28 - Step 6: Final answer
x = 290,487.59
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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.