Finding the Fourth Proportional to 963,189.21, 1,329,197.72 and 555,289.07
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Solution
The fourth proportional to 963,189.21, 1,329,197.72 and 555,289.07 is: 766,296.96
Step by Step Solution
- Step 1: Write the proportion equation
963,189.21 : 1,329,197.72 = 555,289.07 : x - Step 2: Convert to fraction form
963,189.21/1,329,197.72 = 555,289.07/x - Step 3: Cross multiply
963,189.21x = 1,329,197.72 × 555,289.07 - Step 4: Simplify right side
963,189.21x = 738,088,963,850.15 - Step 5: Solve for x
x = 738,088,963,850.15/963,189.21 - Step 6: Final answer
x = 766,296.96
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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.