Finding the Fourth Proportional to 811,848.56, 1,120,353.20 and 449,297.42
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Solution
The fourth proportional to 811,848.56, 1,120,353.20 and 449,297.42 is: 620,031.65
Step by Step Solution
- Step 1: Write the proportion equation
811,848.56 : 1,120,353.20 = 449,297.42 : x - Step 2: Convert to fraction form
811,848.56/1,120,353.20 = 449,297.42/x - Step 3: Cross multiply
811,848.56x = 1,120,353.20 × 449,297.42 - Step 4: Simplify right side
811,848.56x = 503,371,802,248.74 - Step 5: Solve for x
x = 503,371,802,248.74/811,848.56 - Step 6: Final answer
x = 620,031.65
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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.