Finding the Fourth Proportional to 457,244.70, 685,867.05 and 207,926.70
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Solution
The fourth proportional to 457,244.70, 685,867.05 and 207,926.70 is: 311,890.05
Step by Step Solution
- Step 1: Write the proportion equation
457,244.70 : 685,867.05 = 207,926.70 : x - Step 2: Convert to fraction form
457,244.70/685,867.05 = 207,926.70/x - Step 3: Cross multiply
457,244.70x = 685,867.05 × 207,926.70 - Step 4: Simplify right side
457,244.70x = 142,610,072,345.24 - Step 5: Solve for x
x = 142,610,072,345.24/457,244.70 - Step 6: Final answer
x = 311,890.05
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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.