Finding the Fourth Proportional to 1,489,011.66, 2,233,306.56 and 478,000.47
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Solution
The fourth proportional to 1,489,011.66, 2,233,306.56 and 478,000.47 is: 716,932.99
Step by Step Solution
- Step 1: Write the proportion equation
1,489,011.66 : 2,233,306.56 = 478,000.47 : x - Step 2: Convert to fraction form
1,489,011.66/2,233,306.56 = 478,000.47/x - Step 3: Cross multiply
1,489,011.66x = 2,233,306.56 × 478,000.47 - Step 4: Simplify right side
1,489,011.66x = 1,067,521,585,334.08 - Step 5: Solve for x
x = 1,067,521,585,334.08/1,489,011.66 - Step 6: Final answer
x = 716,932.99
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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.