Finding the Fourth Proportional to 687,840.44, 1,031,060.82 and 636,927.08
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Solution
The fourth proportional to 687,840.44, 1,031,060.82 and 636,927.08 is: 954,742.58
Step by Step Solution
- Step 1: Write the proportion equation
687,840.44 : 1,031,060.82 = 636,927.08 : x - Step 2: Convert to fraction form
687,840.44/1,031,060.82 = 636,927.08/x - Step 3: Cross multiply
687,840.44x = 1,031,060.82 × 636,927.08 - Step 4: Simplify right side
687,840.44x = 656,710,557,385.01 - Step 5: Solve for x
x = 656,710,557,385.01/687,840.44 - Step 6: Final answer
x = 954,742.58
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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.