Finding the Fourth Proportional to 410,731.12, 615,461.64 and 320,560.08
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Solution
The fourth proportional to 410,731.12, 615,461.64 and 320,560.08 is: 480,344.50
Step by Step Solution
- Step 1: Write the proportion equation
410,731.12 : 615,461.64 = 320,560.08 : x - Step 2: Convert to fraction form
410,731.12/615,461.64 = 320,560.08/x - Step 3: Cross multiply
410,731.12x = 615,461.64 × 320,560.08 - Step 4: Simplify right side
410,731.12x = 197,292,432,555.33 - Step 5: Solve for x
x = 197,292,432,555.33/410,731.12 - Step 6: Final answer
x = 480,344.50
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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.