Finding the Fourth Proportional to 811,848.16, 1,120,352.64 and 449,297.02
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Solution
The fourth proportional to 811,848.16, 1,120,352.64 and 449,297.02 is: 620,031.09
Step by Step Solution
- Step 1: Write the proportion equation
811,848.16 : 1,120,352.64 = 449,297.02 : x - Step 2: Convert to fraction form
811,848.16/1,120,352.64 = 449,297.02/x - Step 3: Cross multiply
811,848.16x = 1,120,352.64 × 449,297.02 - Step 4: Simplify right side
811,848.16x = 503,371,099,700.25 - Step 5: Solve for x
x = 503,371,099,700.25/811,848.16 - Step 6: Final answer
x = 620,031.09
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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.