Finding the Fourth Proportional to 2,805,695.20, 4,211,307.60 and 1,387,352.80
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Solution
The fourth proportional to 2,805,695.20, 4,211,307.60 and 1,387,352.80 is: 2,082,396.33
Step by Step Solution
- Step 1: Write the proportion equation
2,805,695.20 : 4,211,307.60 = 1,387,352.80 : x - Step 2: Convert to fraction form
2,805,695.20/4,211,307.60 = 1,387,352.80/x - Step 3: Cross multiply
2,805,695.20x = 4,211,307.60 × 1,387,352.80 - Step 4: Simplify right side
2,805,695.20x = 5,842,569,390,521.28 - Step 5: Solve for x
x = 5,842,569,390,521.28/2,805,695.20 - Step 6: Final answer
x = 2,082,396.33
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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.