Finding the Fourth Proportional to 753,271.20, 1,129,915.98 and 220,802.99
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Solution
The fourth proportional to 753,271.20, 1,129,915.98 and 220,802.99 is: 331,207.17
Step by Step Solution
- Step 1: Write the proportion equation
753,271.20 : 1,129,915.98 = 220,802.99 : x - Step 2: Convert to fraction form
753,271.20/1,129,915.98 = 220,802.99/x - Step 3: Cross multiply
753,271.20x = 1,129,915.98 × 220,802.99 - Step 4: Simplify right side
753,271.20x = 249,488,821,183.20 - Step 5: Solve for x
x = 249,488,821,183.20/753,271.20 - Step 6: Final answer
x = 331,207.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.