Finding the Fourth Proportional to 497,201.76, 686,138.40 and 270,847.44
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Solution
The fourth proportional to 497,201.76, 686,138.40 and 270,847.44 is: 373,769.45
Step by Step Solution
- Step 1: Write the proportion equation
497,201.76 : 686,138.40 = 270,847.44 : x - Step 2: Convert to fraction form
497,201.76/686,138.40 = 270,847.44/x - Step 3: Cross multiply
497,201.76x = 686,138.40 × 270,847.44 - Step 4: Simplify right side
497,201.76x = 185,838,829,125.70 - Step 5: Solve for x
x = 185,838,829,125.70/497,201.76 - Step 6: Final answer
x = 373,769.45
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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.