Finding the Fourth Proportional to 808,311.92, 1,115,534.04 and 445,768.88
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Solution
The fourth proportional to 808,311.92, 1,115,534.04 and 445,768.88 is: 615,196.12
Step by Step Solution
- Step 1: Write the proportion equation
808,311.92 : 1,115,534.04 = 445,768.88 : x - Step 2: Convert to fraction form
808,311.92/1,115,534.04 = 445,768.88/x - Step 3: Cross multiply
808,311.92x = 1,115,534.04 × 445,768.88 - Step 4: Simplify right side
808,311.92x = 497,270,359,612.68 - Step 5: Solve for x
x = 497,270,359,612.68/808,311.92 - Step 6: Final answer
x = 615,196.12
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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.