Finding the Fourth Proportional to 470,228.58, 649,114.02 and 317,473.70
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Solution
The fourth proportional to 470,228.58, 649,114.02 and 317,473.70 is: 438,247.77
Step by Step Solution
- Step 1: Write the proportion equation
470,228.58 : 649,114.02 = 317,473.70 : x - Step 2: Convert to fraction form
470,228.58/649,114.02 = 317,473.70/x - Step 3: Cross multiply
470,228.58x = 649,114.02 × 317,473.70 - Step 4: Simplify right side
470,228.58x = 206,076,626,405.70 - Step 5: Solve for x
x = 206,076,626,405.70/470,228.58 - Step 6: Final answer
x = 438,247.77
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1.5x scale
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.