Finding the Fourth Proportional to 491,813.40, 737,720.10 and 323,851.80
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Solution
The fourth proportional to 491,813.40, 737,720.10 and 323,851.80 is: 485,777.70
Step by Step Solution
- Step 1: Write the proportion equation
491,813.40 : 737,720.10 = 323,851.80 : x - Step 2: Convert to fraction form
491,813.40/737,720.10 = 323,851.80/x - Step 3: Cross multiply
491,813.40x = 737,720.10 × 323,851.80 - Step 4: Simplify right side
491,813.40x = 238,911,982,281.18 - Step 5: Solve for x
x = 238,911,982,281.18/491,813.40 - Step 6: Final answer
x = 485,777.70
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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.