Finding the Fourth Proportional to 1,420,300.87, 1,959,984.88 and 775,723.66
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Solution
The fourth proportional to 1,420,300.87, 1,959,984.88 and 775,723.66 is: 1,070,482.09
Step by Step Solution
- Step 1: Write the proportion equation
1,420,300.87 : 1,959,984.88 = 775,723.66 : x - Step 2: Convert to fraction form
1,420,300.87/1,959,984.88 = 775,723.66/x - Step 3: Cross multiply
1,420,300.87x = 1,959,984.88 × 775,723.66 - Step 4: Simplify right side
1,420,300.87x = 1,520,406,637,818.99 - Step 5: Solve for x
x = 1,520,406,637,818.99/1,420,300.87 - Step 6: Final answer
x = 1,070,482.09
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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.