Finding the Fourth Proportional to 585,672.75, 808,228.94 and 317,400.75
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Solution
The fourth proportional to 585,672.75, 808,228.94 and 317,400.75 is: 438,013.33
Step by Step Solution
- Step 1: Write the proportion equation
585,672.75 : 808,228.94 = 317,400.75 : x - Step 2: Convert to fraction form
585,672.75/808,228.94 = 317,400.75/x - Step 3: Cross multiply
585,672.75x = 808,228.94 × 317,400.75 - Step 4: Simplify right side
585,672.75x = 256,532,470,140.70 - Step 5: Solve for x
x = 256,532,470,140.70/585,672.75 - Step 6: Final answer
x = 438,013.33
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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.