Finding the Fourth Proportional to 1,420,407.44, 1,960,150.58 and 775,828.08
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Solution
The fourth proportional to 1,420,407.44, 1,960,150.58 and 775,828.08 is: 1,070,636.37
Step by Step Solution
- Step 1: Write the proportion equation
1,420,407.44 : 1,960,150.58 = 775,828.08 : x - Step 2: Convert to fraction form
1,420,407.44/1,960,150.58 = 775,828.08/x - Step 3: Cross multiply
1,420,407.44x = 1,960,150.58 × 775,828.08 - Step 4: Simplify right side
1,420,407.44x = 1,520,739,860,992.29 - Step 5: Solve for x
x = 1,520,739,860,992.29/1,420,407.44 - Step 6: Final answer
x = 1,070,636.37
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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.