Finding the Fourth Proportional to 723,888.20, 1,085,307.42 and 486,642.44
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Solution
The fourth proportional to 723,888.20, 1,085,307.42 and 486,642.44 is: 729,610.80
Step by Step Solution
- Step 1: Write the proportion equation
723,888.20 : 1,085,307.42 = 486,642.44 : x - Step 2: Convert to fraction form
723,888.20/1,085,307.42 = 486,642.44/x - Step 3: Cross multiply
723,888.20x = 1,085,307.42 × 486,642.44 - Step 4: Simplify right side
723,888.20x = 528,156,651,018.91 - Step 5: Solve for x
x = 528,156,651,018.91/723,888.20 - Step 6: Final answer
x = 729,610.80
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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.