Finding the Fourth Proportional to 1,420,565.99, 1,960,348.84 and 775,989.05
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Solution
The fourth proportional to 1,420,565.99, 1,960,348.84 and 775,989.05 is: 1,070,847.28
Step by Step Solution
- Step 1: Write the proportion equation
1,420,565.99 : 1,960,348.84 = 775,989.05 : x - Step 2: Convert to fraction form
1,420,565.99/1,960,348.84 = 775,989.05/x - Step 3: Cross multiply
1,420,565.99x = 1,960,348.84 × 775,989.05 - Step 4: Simplify right side
1,420,565.99x = 1,521,209,222,278.49 - Step 5: Solve for x
x = 1,521,209,222,278.49/1,420,565.99 - Step 6: Final answer
x = 1,070,847.28
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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.