Finding the Fourth Proportional to 963,605.80, 1,445,408.70 and 491,213.80
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Solution
The fourth proportional to 963,605.80, 1,445,408.70 and 491,213.80 is: 736,820.70
Step by Step Solution
- Step 1: Write the proportion equation
963,605.80 : 1,445,408.70 = 491,213.80 : x - Step 2: Convert to fraction form
963,605.80/1,445,408.70 = 491,213.80/x - Step 3: Cross multiply
963,605.80x = 1,445,408.70 × 491,213.80 - Step 4: Simplify right side
963,605.80x = 710,004,700,080.06 - Step 5: Solve for x
x = 710,004,700,080.06/963,605.80 - Step 6: Final answer
x = 736,820.70
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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.