Finding the Fourth Proportional to 391,523.80, 587,285.70 and 368,195.80
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Solution
The fourth proportional to 391,523.80, 587,285.70 and 368,195.80 is: 552,293.70
Step by Step Solution
- Step 1: Write the proportion equation
391,523.80 : 587,285.70 = 368,195.80 : x - Step 2: Convert to fraction form
391,523.80/587,285.70 = 368,195.80/x - Step 3: Cross multiply
391,523.80x = 587,285.70 × 368,195.80 - Step 4: Simplify right side
391,523.80x = 216,236,128,140.06 - Step 5: Solve for x
x = 216,236,128,140.06/391,523.80 - Step 6: Final answer
x = 552,293.70
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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.