Finding the Fourth Proportional to 810,247.84, 1,118,135.46 and 447,670.60
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Solution
The fourth proportional to 810,247.84, 1,118,135.46 and 447,670.60 is: 617,781.80
Step by Step Solution
- Step 1: Write the proportion equation
810,247.84 : 1,118,135.46 = 447,670.60 : x - Step 2: Convert to fraction form
810,247.84/1,118,135.46 = 447,670.60/x - Step 3: Cross multiply
810,247.84x = 1,118,135.46 × 447,670.60 - Step 4: Simplify right side
810,247.84x = 500,556,372,259.48 - Step 5: Solve for x
x = 500,556,372,259.48/810,247.84 - Step 6: Final answer
x = 617,781.80
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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.