Finding the Fourth Proportional to 1,420,518.24, 1,960,240.14 and 775,929.24
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Solution
The fourth proportional to 1,420,518.24, 1,960,240.14 and 775,929.24 is: 1,070,741.37
Step by Step Solution
- Step 1: Write the proportion equation
1,420,518.24 : 1,960,240.14 = 775,929.24 : x - Step 2: Convert to fraction form
1,420,518.24/1,960,240.14 = 775,929.24/x - Step 3: Cross multiply
1,420,518.24x = 1,960,240.14 × 775,929.24 - Step 4: Simplify right side
1,420,518.24x = 1,521,007,642,047.69 - Step 5: Solve for x
x = 1,521,007,642,047.69/1,420,518.24 - Step 6: Final answer
x = 1,070,741.37
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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.