Finding the Fourth Proportional to 864,848.30, 1,297,272.42 and 257,645.80
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Solution
The fourth proportional to 864,848.30, 1,297,272.42 and 257,645.80 is: 386,468.69
Step by Step Solution
- Step 1: Write the proportion equation
864,848.30 : 1,297,272.42 = 257,645.80 : x - Step 2: Convert to fraction form
864,848.30/1,297,272.42 = 257,645.80/x - Step 3: Cross multiply
864,848.30x = 1,297,272.42 × 257,645.80 - Step 4: Simplify right side
864,848.30x = 334,236,788,998.03 - Step 5: Solve for x
x = 334,236,788,998.03/864,848.30 - Step 6: Final answer
x = 386,468.69
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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.