Finding the Fourth Proportional to 986,482.20, 1,479,723.30 and 687,883.80
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Solution
The fourth proportional to 986,482.20, 1,479,723.30 and 687,883.80 is: 1,031,825.70
Step by Step Solution
- Step 1: Write the proportion equation
986,482.20 : 1,479,723.30 = 687,883.80 : x - Step 2: Convert to fraction form
986,482.20/1,479,723.30 = 687,883.80/x - Step 3: Cross multiply
986,482.20x = 1,479,723.30 × 687,883.80 - Step 4: Simplify right side
986,482.20x = 1,017,877,686,552.54 - Step 5: Solve for x
x = 1,017,877,686,552.54/986,482.20 - Step 6: Final answer
x = 1,031,825.70
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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.