Finding the Fourth Proportional to 928,178.76, 1,392,269.36 and 254,266.05
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Solution
The fourth proportional to 928,178.76, 1,392,269.36 and 254,266.05 is: 381,399.41
Step by Step Solution
- Step 1: Write the proportion equation
928,178.76 : 1,392,269.36 = 254,266.05 : x - Step 2: Convert to fraction form
928,178.76/1,392,269.36 = 254,266.05/x - Step 3: Cross multiply
928,178.76x = 1,392,269.36 × 254,266.05 - Step 4: Simplify right side
928,178.76x = 354,006,830,703.23 - Step 5: Solve for x
x = 354,006,830,703.23/928,178.76 - Step 6: Final answer
x = 381,399.41
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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.