Finding the Fourth Proportional to 409,208.48, 564,512.12 and 317,939.84
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Solution
The fourth proportional to 409,208.48, 564,512.12 and 317,939.84 is: 438,605.02
Step by Step Solution
- Step 1: Write the proportion equation
409,208.48 : 564,512.12 = 317,939.84 : x - Step 2: Convert to fraction form
409,208.48/564,512.12 = 317,939.84/x - Step 3: Cross multiply
409,208.48x = 564,512.12 × 317,939.84 - Step 4: Simplify right side
409,208.48x = 179,480,893,110.86 - Step 5: Solve for x
x = 179,480,893,110.86/409,208.48 - Step 6: Final answer
x = 438,605.02
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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.