Finding the Fourth Proportional to 687,739.44, 1,031,277.34 and 288,272.95
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Solution
The fourth proportional to 687,739.44, 1,031,277.34 and 288,272.95 is: 432,270.34
Step by Step Solution
- Step 1: Write the proportion equation
687,739.44 : 1,031,277.34 = 288,272.95 : x - Step 2: Convert to fraction form
687,739.44/1,031,277.34 = 288,272.95/x - Step 3: Cross multiply
687,739.44x = 1,031,277.34 × 288,272.95 - Step 4: Simplify right side
687,739.44x = 297,289,362,563.34 - Step 5: Solve for x
x = 297,289,362,563.34/687,739.44 - Step 6: Final answer
x = 432,270.34
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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.