Finding the Fourth Proportional to 810,281.44, 1,215,363.84 and 354,918.88
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Solution
The fourth proportional to 810,281.44, 1,215,363.84 and 354,918.88 is: 532,352.77
Step by Step Solution
- Step 1: Write the proportion equation
810,281.44 : 1,215,363.84 = 354,918.88 : x - Step 2: Convert to fraction form
810,281.44/1,215,363.84 = 354,918.88/x - Step 3: Cross multiply
810,281.44x = 1,215,363.84 × 354,918.88 - Step 4: Simplify right side
810,281.44x = 431,355,572,885.30 - Step 5: Solve for x
x = 431,355,572,885.30/810,281.44 - Step 6: Final answer
x = 532,352.77
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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.